# ${{\widetilde{\boldsymbol \chi}}_{{1}}^{\pm}}$, ${{\widetilde{\boldsymbol \chi}}_{{2}}^{\pm}}$ (Charginos) mass limits INSPIRE search

Charginos are unknown mixtures of w-inos and charged higgsinos (the supersymmetric partners of ${{\mathit W}}$ and Higgs bosons). A lower mass limit for the lightest chargino (${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$) of approximately 45 GeV, independent of the field composition and of the decay mode, has been obtained by the LEP experiments from the analysis of the ${{\mathit Z}}$ width and decays. These results, as well as other now superseded limits from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ collisions at energies below 136$~$GeV, and from hadronic collisions, can be found in the 1998 Edition (The European Physical Journal C3 1 (1998)) of this Review.

Unless otherwise stated, results in this section assume spectra, production rates, decay modes and branching ratios as evaluated in the MSSM, with gaugino and sfermion mass unification at the GUT scale. These papers generally study production of ${{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ , ${{\widetilde{\mathit \chi}}_{{1}}^{+}}{{\widetilde{\mathit \chi}}_{{1}}^{-}}$ and (in the case of hadronic collisions) ${{\widetilde{\mathit \chi}}_{{1}}^{+}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ pairs, including the effects of cascade decays. The mass limits on ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ are either direct, or follow indirectly from the constraints set by the non-observation of ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ states on the gaugino and higgsino MSSM parameters $\mathit M_{2}$ and $\mu$. For generic values of the MSSM parameters, limits from high-energy ${{\mathit e}^{+}}{{\mathit e}^{-}}$ collisions coincide with the highest value of the mass allowed by phase-space, namely ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}{ {}\lesssim{} }\sqrt {s }$/2. The still unpublished combination of the results of the four LEP collaborations from the 2000 run of LEP2 at $\sqrt {\mathit s }$ up to $\simeq{}209~$GeV yields a lower mass limit of 103.5$~$GeV valid for general MSSM models. The limits become however weaker in certain regions of the MSSM parameter space where the detection efficiencies or production cross sections are suppressed. For example, this may happen when: (i)$~$the mass differences $\Delta \mathit m_{+}$= ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}–{\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ or $\Delta {\mathit m}_{{{\mathit \nu}}}$= ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}–{\mathit m}_{{{\widetilde{\mathit \nu}}}}$ are very small, and the detection efficiency is reduced; (ii)$~$the electron sneutrino mass is small, and the ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ production rate is suppressed due to a destructive interference between ${{\mathit s}}$ and ${{\mathit t}}$ channel exchange diagrams. The regions of MSSM parameter space where the following limits are valid are indicated in the comment lines or in the footnotes.

Some earlier papers are now obsolete and have been omitted. They were last listed in our PDG 2014 edition: K. Olive, $\mathit et~al.$ (Particle Data Group), Chinese Physics C38 070001 (2014) (http://pdg.lbl.gov).

VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
$> 1050$ 95 1
 2020 B
CMS ${}\geq{}1{{\mathit \gamma}}$ + $\not E_T$, Tchi1chi1F, ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\widetilde{\mathit G}}}$
$> 825$ 95 1
 2020 B
CMS ${}\geq{}1{{\mathit \gamma}}$ + $\not E_T$, Tchi1chi1G, ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{0}}{+}$ soft
$> 840$ 95 1
 2020 B
CMS ${}\geq{}1{{\mathit \gamma}}$ + $\not E_T$, Tchi1n12-GGM, 120 GeV $<$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ $<$ 720 GeV
$> 680$ 95 2
 2019 AU
ATL 0, 1, 2 or more ${{\mathit \ell}}$, ${{\mathit H}}$ ( $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ , ${{\mathit b}}{{\mathit b}}$ , ${{\mathit W}}{{\mathit W}^{*}}$ , ${{\mathit Z}}{{\mathit Z}^{*}}$ , ${{\mathit \tau}}{{\mathit \tau}}$ ) (various searches), Tchi1n2E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$>112$ 95 3
 2019 BU
CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{+}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ +2 jets, ${{\widetilde{\mathit \chi}}_{{1}}^{+}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , heavy sleptons, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{+}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 1 GeV, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{+}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$
$>215$ 95 3
 2019 BU
CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{+}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ + 2 jets, ${{\widetilde{\mathit \chi}}_{{1}}^{+}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , heavy sleptons, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{+}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 30 GeV, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{+}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$
$> 235$ 95 4
 2019 CI
CMS ${}\geq{}$1 ${{\mathit H}}$ ( $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ ) + jets + $\not E_T$, Tchi1n2E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 1 GeV
$>930$ 95 5
 2019 K
CMS ${{\mathit \gamma}}$ + lepton + $\not E_T$, Tchi1n1A
$> 630$ 95 6
 2018 AY
ATLS 2${{\mathit \tau}}+\not E_T$, Tchi1chi1D and ${{\widetilde{\mathit \tau}}_{{L}}}$-only, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 760$ 95 7
 2018 AY
ATLS 2${{\mathit \tau}}+\not E_T$, Tchi1n2D and ${{\widetilde{\mathit \tau}}_{{L}}}$-only, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 740$ 95 8
 2018 BT
ATLS 2${{\mathit \ell}}+\not E_T$, Tchi1chi1C, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$> 1125$ 95 9
 2018 BT
ATLS 2,3${{\mathit \ell}}+\not E_T$, Tchi1n2C, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$> 580$ 95 10
 2018 BT
ATLS 2,3${{\mathit \ell}}+\not E_T$, Tchi1n2F, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$\text{none 130 - 230, 290 - 880}$ 95 11
 2018 CK
ATLS 2${{\mathit H}}$ ( $\rightarrow$ ${{\mathit b}}{{\mathit b}}$ )+$\not E_T$,Tn1n1A, GMSB
$\text{none 220 - 600}$ 95 12
 2018 CO
ATLS 2,3${{\mathit \ell}}$ + $\not E_T$, recursive jigsaw, Tchi1n2F, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 175$ 95 13
 2018 R
ATLS 2${{\mathit \ell}}$ (soft) + $\not E_T$, Tchi1n2F, wino, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 10 GeV
$> 145$ 95 14
 2018 R
ATLS 2${{\mathit \ell}}$ (soft) + $\not E_T$, Tchi1n2G, higgsino, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 5 GeV
$> 1060$ 95 15
 2018 U
ATLS 2${{\mathit \gamma}}$ + $\not E_T$, GGM, Tchi1chi1A, any NLSP mass
$> 1400$ 95 16
 2018 Z
ATLS ${}\geq{}4{{\mathit \ell}}$, RPV, ${{\mathit \lambda}_{{12k}}}{}\not=$0, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ $>$ 500 GeV
$> 1320$ 95 16
 2018 Z
ATLS ${}\geq{}4{{\mathit \ell}}$, RPV, ${{\mathit \lambda}_{{12k}}}{}\not=$0, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ $>$ 50 GeV
$> 980$ 95 16
 2018 Z
ATLS ${}\geq{}4{{\mathit \ell}}$, RPV, ${{\mathit \lambda}_{{i33}}}{}\not=$0, 400 GeV $<$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ $<$ 700 GeV
$> 980$ 95 17
 2018 AA
CMS ${}\geq{}1{{\mathit \gamma}}$ + $\not E_T$, GGM, wino-like ${{\widetilde{\mathit \chi}}_{{2}}^{0}}{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ pair production, nearly degenerate wino and bino masses
$> 780$ 95 17
 2018 AA
CMS ${}\geq{}1{{\mathit \gamma}}$ + $\not E_T$, Tchi1n1A
$> 950$ 95 17
 2018 AA
CMS ${}\geq{}1{{\mathit \gamma}}$ + $\not E_T$, Tchi1chi1A
$> 230$ 95 18
 2018 AJ
CMS 2${{\mathit \ell}}$ (soft) + $\not E_T$, Tchi1n2F, wino, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 20 GeV
$> 1150$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2A, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \nu}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.5 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 1120$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2A, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \nu}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.05 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 1050$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2A, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \nu}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.95 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 1080$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2H, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.5 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 1030$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2H, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.05 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 1050$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2H, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.95 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 625$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2D, ${\mathit m}_{{{\widetilde{\mathit \tau}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.5 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 180$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 450$ 95 19
 2018 AO
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ or ${}\geq{}3{{\mathit \ell}}$ , Tchi1n2F, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 480$ 95 20
 2018 AP
CMS Combination of searches, Tchi1n2E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 650$ 95 20
 2018 AP
CMS Combination of searches, Tchi1n2F, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 535$ 95 20
 2018 AP
CMS Combination of searches, Tchi1n2I, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$\text{none 160 - 610}$ 95 21
 2018 AR
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}$ + jets + $\not E_T$, Tchi1n2F, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$\text{none 170 - 200}$ 95 22
 2018 DN
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}$ , Tchi1chi1E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 1 GeV
$\bf{> 810}$ 95 22
 2018 DN
CMS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}$ , Tchi1chi1C, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 630$ 95 23
 2018 DP
CMS 2${{\mathit \tau}}+\not E_T$, Tchi1chi1D,${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$> 710$ 95 23
 2018 DP
CMS 2${{\mathit \tau}}+\not E_T$, Tchi1n2D, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 170$ 95 24
 2018 X
CMS ${}\geq{}$1 ${{\mathit H}}$ ( $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ ) + jets + $\not E_T$, Tchi1n2E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ $<$ 25 GeV
$> 420$ 95 25
 2017 L
CMS 2${{\mathit \tau}}+\not E_T$, Tchi1chi1C and ${{\widetilde{\mathit \tau}}}$-only, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$\text{none 220 - 490}$ 95 26
 2017 AW
CMS 1${{\mathit \ell}}$ + 2${{\mathit b}}$-jets + $\not E_T$, Tchi1n2E, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$>500$ 95 27
 2016 AA
ATLS 2${{\mathit \ell}^{\pm}}+\not E_T$,Tchi1chi1B,${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$>220$ 95 27
 2016 AA
ATLS 2${{\mathit \ell}^{\pm}}+\not E_T$, Tchi1chi1C, low ${{\mathit \Delta}}$m for ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$, ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$
$>700$ 95 28
 2016 AA
ATLS 3,4${{\mathit \ell}}+\not E_T$,Tchi1n2B, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$>700$ 95 28
 2016 AA
ATLS 3,4${{\mathit \ell}}+\not E_T$, Tchi1n2C, ${\mathit m}_{{{\widetilde{\mathit \ell}}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$+ 0.5 (or 0.95) (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$)
$>400$ 95 28
 2016 AA
ATLS 2 hadronic ${{\mathit \tau}}+\not E_T$ $\&$ 3${{\mathit \ell}}+\not E_T$ combination,Tchi1n2D,${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=0 GeV
$> 540$ 95 29
 2016 R
CMS ${}\geq{}1{{\mathit \gamma}}$ + 1 ${{\mathit e}}$ or ${{\mathit \mu}}$ + $\not E_T$, Tchi1n1A
$>250$ 95 30
 2015 BA
ATLS ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$>590$ 95 31
 2015 CA
ATLS ${}\geq{}$2 ${{\mathit \gamma}}$ + $\not E_T$, GGM, bino-like NLSP, any NLSP mass
$\text{none 124 - 361}$ 95 31
 2015 CA
ATLS ${}\geq{}$1 ${{\mathit \gamma}}$ + ${{\mathit e}},{{\mathit \mu}}$ + $\not E_T$, GGM, wino-like NLSP
$> 700$ 95 32
 2014 H
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{\pm}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 345$ 95 32
 2014 H
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit Z}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 148$ 95 32
 2014 H
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit H}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 380$ 95 32
 2014 H
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit \tau}^{\pm}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit \tau}^{\pm}}{{\mathit \tau}^{\mp}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 750$ 95 33
 2014 X
ATLS RPV, ${}\geq{}4{{\mathit \ell}^{\pm}}$, ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{(*)\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}{{\mathit \nu}}$
$> 210$ 95 34
 2014 L
CMS ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ simplified models, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
35
 2013
ATLS 3${{\mathit \ell}^{\pm}}$ + $\not E_T$, pMSSM, SMS
36
 2013 B
ATLS 2${{\mathit \ell}^{\pm}}$ + $\not E_T$, pMSSM, SMS
$> 540$ 95 37
 2012 CT
ATLS ${}\geq{}4{{\mathit \ell}^{\pm}}$, RPV, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ $>$ 300 GeV
38
 2012 BJ
CMS ${}\geq{}$2 ${{\mathit \ell}}$, jets + $\not E_T$, ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$
$\bf{>94}$ 95 39
 2003 M
DLPH ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$, tan $\beta {}\leq{}$40, $\Delta {\mathit m}_{{+} }>$3~GeV,all
• • • We do not use the following data for averages, fits, limits, etc. • • •
$> 570$ 95 40
 2016 AA
CMS ${}\geq{}1{{\mathit \gamma}}$ + jets + $\not E_T$, Tchi1chi1A
$> 680$ 95 40
 2016 AA
CMS ${}\geq{}1{{\mathit \gamma}}$ + jets + $\not E_T$, Tchi1n1A
$> 710$ 95 40
 2016 AA
CMS ${}\geq{}1{{\mathit \gamma}}$ + jets + $\not E_T$, GGM, ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ pair production, wino-like NLSP
$> 1000$ 95 41
 2016 R
CMS ${}\geq{}1{{\mathit \gamma}}$ + 1 ${{\mathit e}}$ or ${{\mathit \mu}}$ + $\not E_T$, Tglu1F, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$ $>$ 200 GeV
$> 307$ 95 42
 2016 Y
CMS 1,2 soft ${{\mathit \ell}^{\pm}}$+jets+$\not E_T$, Tchi1n2A, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}−{\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$=20 GeV
$> 410$ 95 43
 2014 AV
ATLS ${}\geq{}$2 ${{\mathit \tau}}$ + $\not E_T$, direct ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ , ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ production, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 345$ 95 44
 2014 AV
ATLS ${}\geq{}$2 ${{\mathit \tau}}$ + $\not E_T$, direct ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ production, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$\text{none 100 - 105, 120 - 135, 145 - 160}$ 95 45
 2014 G
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit W}^{-}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$\text{none 140 - 465}$ 95 45
 2014 G
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$\text{none 180 - 355}$ 95 45
 2014 G
ATLS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\mathit Z}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , simplified model, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV
$> 168$ 95 46
 2014
CDF 3${{\mathit \ell}^{\pm}}$+ $\not E_T$, ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , mSUGRA with ${\mathit m}_{\mathrm {0}}$=60 GeV
47
 2014 I
CMS ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit W}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , ${{\mathit \ell}}{{\widetilde{\mathit \nu}}}$ , ${{\widetilde{\mathit \ell}}}{{\mathit \nu}}$ , simplified model
48
 2013 Q
CDF ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit X}}$ , simplified gravity- and gauge-mediated models
49
 2012 AS
ATLS 3${{\mathit \ell}^{\pm}}$ + $\not E_T$, pMSSM
50
 2012 T
ATLS ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}$ + $\not E_T$, ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\pm}}$ + $\not E_T$, ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$
51
 2011 B
CMS ${{\widetilde{\mathit W}}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\widetilde{\mathit G}}}$ , ${{\widetilde{\mathit W}}^{\pm}}$ $\rightarrow$ ${{\mathit \ell}^{\pm}}{{\widetilde{\mathit G}}}$ ,GMSB
$> 163$ 95 52
 2011 V
CMS tan ${{\mathit \beta}}$=3, ${{\mathit m}_{{0}}}$=60 GeV, ${{\mathit A}_{{0}}}$=0, ${{\mathit \mu}}>$0
1  SIRUNYAN 2020B searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events with at least one photon and large $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on chargino masses in a general gauge-mediated SUSY breaking (GGM) scenario Tchi1n12-GGM, see Figure 4. Limits are also set on the NLSP mass in the Tchi1chi1F and Tchi1chi1G simplified models, see their Figure 5. Finally, limits are set on the gluino mass in the Tglu4A simplified model, see Figure 6.
2  AABOUD 2019AU searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos and next-to-lightest neutralinos decaying into lightest neutralinos and a ${{\mathit W}}$, and a Higgs boson, respectively. Fully hadronic, semileptonic, diphoton, and multilepton (electrons, muons) final states with missing transverse momentum are considered in this search. Observations are consistent with the Standard Model expectations, and 95$\%$ confidence-level limits of up to 680 GeV on the chargino/next-to-lightest neutralino masses are set (Tchi1n2E model). See their Figure 14 for an overlay of exclusion contours from all searches.
3  SIRUNYAN 2019BU searched for pair production of gauginos via vector boson fusion assuming the gaugino spectrum is compressed, in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The final states explored included zero leptons plus two jets, one lepton plus two jets, and one hadronic tau plus two jets. A similar bound is obtained in the light slepton limit.
4  SIRUNYAN 2019CI searched in 77.5 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events with one or more high-momentum Higgs bosons, decaying to pairs of photons, jets and $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on the sbottom mass in the Tsbot4 simplified model, see Figure 3, and on the wino mass in the Tchi1n2E simplified model, see their Figure 4. Limits are also set on the higgsino mass in the Tn1n1A and Tn1n1B simplified models, see their Figure 5.
5  SIRUNYAN 2019K searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events with a photon, an electron or muon, and large $\not E_T$. No significant excess above the Standard Model expectations is observed. In the framework of GMSB, limits are set on the chargino and neutralino mass in the Tchi1n1A simplified model, see their Figure 6. Limits are also set on the gluino mass in the Tglu4A simplified model, and on the squark mass in the Tsqk4A simplified model, see their Figure 7.
6  AABOUD 2018AY searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos as in Tchi1chi1D models in events characterised by the presence of at least two hadronically decaying tau leptons and large missing transverse energy. No significant deviation from the expected SM background is observed. In the Tchi1chi1D model, assuming decays via intermediate ${{\widetilde{\mathit \tau}}_{{L}}}$, the observed limits rule out ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ masses up to 630 GeV for a massless ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$. See their Fig.7 (left). Interpretations are also provided in Fig 8 (top) for different assumptions on the ratio between ${\mathit m}_{{{\widetilde{\mathit \tau}}}}$ and ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ + ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$.
7  AABOUD 2018AY searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos and neutralinos as in Tchi1n2D models, in events characterised by the presence of at least two hadronically decaying tau leptons and large missing transverse energy. No significant deviation from the expected SM background is observed. Assuming decays via intermediate ${{\widetilde{\mathit \tau}}_{{L}}}$ and ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$, the observed limits rule out ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ masses up to 760 GeV for a massless ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$. See their Fig.7 (right). Interpretations are also provided in Fig 8 (bottom) for different assumptions on the ratio between ${\mathit m}_{{{\widetilde{\mathit \tau}}}}$ and ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ + ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$.
8  AABOUD 2018BT searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos, chargino and next-to-lightest neutralinos and sleptons in events with two or three leptons (electrons or muons), with or without jets and large missing transverse energy. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino mass up to 750 GeV for massless neutralinos in the Tchi1chi1C simplified model exploiting 2${{\mathit \ell}}$ + 0 jets signatures, see their Figure 8(a).
9  AABOUD 2018BT searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos, chargino and next-to-lightest neutralinos and sleptons in events with two or three leptons (electrons or muons), with or without jets, and large missing transverse energy. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino mass up to 1100 GeV for massless neutralinos in the Tchi1n2C simplified model exploiting 3${{\mathit \ell}}$ signature, see their Figure 8(c).
10  AABOUD 2018BT searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos, chargino and next-to-lightest neutralinos and sleptons in events with two or three leptons (electrons or muons), with or without jets, and large missing transverse energy. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino mass up to 580 GeV for massless neutralinos in the Tchi1n2F simplified model exploiting 2${{\mathit \ell}}$+2 jets and 3${{\mathit \ell}}$ signatures, see their Figure 8(d).
11  AABOUD 2018CK searched for events with at least 3 ${{\mathit b}}$-jets and large missing transverse energy in two datasets of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV of 36.1 ${\mathrm {fb}}{}^{-1}$ and 24.3 ${\mathrm {fb}}{}^{-1}$ depending on the trigger requirements. The analyses aimed to reconstruct two Higgs bosons decaying to pairs of ${{\mathit b}}$-quarks. No significant excess above the Standard Model expectations is observed. Limits are set on the Higgsino mass in the T1n1n1A simplified model, see their Figure 15(a). Constraints are also presented as a function of the BR of Higgsino decaying into an higgs boson and a gravitino, see their Figure 15(b).
12  AABOUD 2018CO searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of mass-degenerate charginos and next-to-lightest neutralinos in events with two or three leptons (electrons or muons), with or without jets, and large missing transverse energy. The search channels are based on recursive jigsaw reconstruction. Limits are set on the chargino mass up to 600 GeV for massless neutralinos in the Tchi1n2F simplified model exploiting the statistical combination of 2${{\mathit \ell}}$+2 jets and 3${{\mathit \ell}}$ channels. Chargino masses below 220 GeV are not excluded due to an excess of events above the SM prediction in the dedicated regions. See their Figure 13(d).
13  AABOUD 2018R searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for electroweak production in scenarios with compressed mass spectra in final states with two low-momentum leptons and missing transverse momentum. The data are found to be consistent with the SM prediction. Results are interpreted in Tchi1n2G wino models and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ masses are excluded up to 175 GeV for ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ $−$ ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 10 GeV. The exclusion limits extend down to mass splittings of 2 GeV, see their Fig. 10 (bottom).
14  AABOUD 2018R searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for electroweak production in scenarios with compressed mass spectra in final states with two low-momentum leptons and missing transverse momentum. The data are found to be consistent with the SM prediction. Results are interpreted in Tchi1n2G higgsino models and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ masses are excluded up to 145 GeV for ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}} - {\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 5 GeV. The exclusion limits extend down to mass splittings of 2.5 GeV, see their Fig. 10 (top).
15  AABOUD 2018U searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV in events with at least one isolated photon, possibly jets and significant transverse momentum targeting generalised models of gauge-mediated SUSY breaking. No significant excess of events is observed above the SM prediction. Results of the diphoton channel are interpreted in terms of lower limits on the masses of gauginos Tchi1chi1A models, which reach as high as 1.3 TeV. Gaugino masses below 1060 GeV are excluded for any NLSP mass, see their Fig. 10.
16  AABOUD 2018Z searched in 36.1 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events containing four or more charged leptons (electrons, muons and up to two hadronically decaying taus). No significant deviation from the expected SM background is observed. Limits are set on the Higgsino mass in simplified models of general gauge mediated supersymmetry Tn1n1A/Tn1n1B/Tn1n1C, see their Figure 9. Limits are also set on the wino, slepton, sneutrino and gluino mass in a simplified model of NLSP pair production with R-parity violating decays of the LSP via ${{\mathit \lambda}_{{12k}}}$ or ${{\mathit \lambda}_{{i33}}}$ to charged leptons, see their Figures 7, 8.
17  SIRUNYAN 2018AA searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events with at least one photon and large $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on wino masses in a general gauge-mediated SUSY breaking (GGM) scenario with bino-like ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ and wino-like ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ and ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ , see Figure 7. Limits are also set on the NLSP mass in the Tchi1n1A and Tchi1chi1A simplified models, see their Figure 8. Finally, limits are set on the gluino mass in the Tglu4A and Tglu4B simplified models, see their Figure 9, and on the squark mass in the Tskq4A and Tsqk4B simplified models, see their Figure 10.
18  SIRUNYAN 2018AJ searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events containing two low-momentum, oppositely charged leptons (electrons or muons) and $\not E_T$. No excess over the expected background is observed. Limits are derived on the wino mass in the Tchi1n2F simplified model, see their Figure 5. Limits are also set on the stop mass in the Tstop10 simplified model, see their Figure 6. Finally, limits are set on the Higgsino mass in the Tchi1n2G simplified model, see Figure 8 and in the pMSSM, see Figure 7.
19  SIRUNYAN 2018AO searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos and neutralinos in events with either two or more leptons (electrons or muons) of the same electric charge, or with three or more leptons, which can include up to two hadronically decaying tau leptons. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino/neutralino mass in the Tchi1n2A, Tchi1n2H, Tchi1n2D, Tchi1n2E and Tchi1n2F simplified models, see their Figures 14, 15, 16, 17 and 18. Limits are also set on the higgsino mass in the Tn1n1A, Tn1n1B and Tn1n1C simplified models, see their Figure 19.
20  SIRUNYAN 2018AP searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos and neutralinos by combining a number of previous and new searches. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino/neutralino mass in the Tchi1n2E, Tchi1n2F and Tchi1n2I simplified models, see their Figures 7, 8, 9 an 10. Limits are also set on the higgsino mass in the Tn1n1A, Tn1n1B and Tn1n1C simplified models, see their Figure 11, 12, 13 and 14.
21  SIRUNYAN 2018AR searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events containing two opposite-charge, same-flavour leptons (electrons or muons), jets and $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on the gluino mass in the Tglu4C simplified model, see their Figure 7. Limits are also set on the chargino/neutralino mass in the Tchi1n2F simplified models, see their Figure 8, and on the higgsino mass in the Tn1n1B and Tn1n1C simplified models, see their Figure 9. Finally, limits are set on the sbottom mass in the Tsbot3 simplified model, see their Figure 10.
22  SIRUNYAN 2018DN searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos and for pair production of top squarks in events with two leptons (electrons or muons) of the opposite electric charge. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino mass in the Tchi1chi1C and Tchi1chi1E simplified models, see their Figure 8. Limits are also set on the stop mass in the Tstop1 and Tstop2 simplified models, see their Figure 9.
23  SIRUNYAN 2018DP searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for direct electroweak production of charginos and neutralinos or of chargino pairs in events with a tau lepton pair and significant missing transverse momentum. Both hadronic and leptonic decay modes are considered for the tau lepton. No significant excess above the Standard Model expectations is observed. Limits are set on the chargino mass in the Tchi1chi1D and Tchi1n2 simplified models, see their Figures 14 and 15. Also, excluded stau pair production cross sections are shown in Figures 11, 12, and 13.
24  SIRUNYAN 2018X searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events with one or more high-momentum Higgs bosons, decaying to pairs of photons, jets and $\not E_T$. The razor variables (${{\mathit M}_{{R}}}$ and ${{\mathit R}^{2}}$) are used to categorise the events. No significant excess above the Standard Model expectations is observed. Limits are set on the sbottom mass in the Tsbot4 simplified model and on the wino mass in the Tchi1n2E simplified model, see their Figure 5. Limits are also set on the higgsino mass in the Tn1n1A and Tn1n1B simplified models, see their Figure 6.
25  KHACHATRYAN 2017L searched in about 19 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with two ${{\mathit \tau}}$ (at least one decaying hadronically) and $\not E_T$. In the Tchi1chi1C model, assuming decays via intermediate ${{\widetilde{\mathit \tau}}}$ or ${{\widetilde{\mathit \nu}}_{{\tau}}}$ with equivalent mass, the observed limits rule out ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ masses up to 420 GeV for a massless ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$. See their Fig.5.
26  SIRUNYAN 2017AW searched in 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV for events with a charged lepton (electron or muon), two jets identified as originating from a ${{\mathit b}}$-quark, and large $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on the mass of the chargino and the next-to-lightest neutralino in the Tchi1n2E simplified model, see their Figure 6.
27  AAD 2016AA summarized and extended ATLAS searches for electroweak supersymmetry in final states containing several charged leptons, $\not E_T$, with or without hadronic jets, in 20 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The paper reports the results of new interpretations and statistical combinations of previously published analyses, as well as new analyses. Exclusion limits at 95$\%$ C.L. are set on the ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ mass in the Tchi1chi1B and Tchi1chi1C simplified models. See their Fig. 13.
28  AAD 2016AA summarized and extended ATLAS searches for electroweak supersymmetry in final states containing several charged leptons, $\not E_T$, with or without hadronic jets, in 20 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The paper reports the results of new interpretations and statistical combinations of previously published analyses, as well as new analyses. Exclusion limits at 95$\%$ C.L. are set on mass-degenerate ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ and ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ masses in the Tchi1n2B, Tchi1n2C, and Tchi1n2D simplified models. See their Figs. 16, 17, and 18. Interpretations in phenomenological-MSSM, two-parameter Non Universal Higgs Masses (NUHM2), and gauge-mediated symmetry breaking (GMSB) models are also given in their Figs. 20, 21 and 22.
29  KHACHATRYAN 2016R searched in 19.7 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with one or more photons, one electron or muon, and $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on wino masses in a general gauge-mediated SUSY breaking model (GGM), for a wino-like neutralino NLSP scenario, see Fig. 5. Limits are also set in the Tglu1D and Tchi1n1A simplified models, see Fig. 6. The Tchi1n1A limit is reduced to 340 GeV for a branching ratio reduced by the weak mixing angle.
30  AAD 2015BA searched in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for electroweak production of charginos and neutralinos decaying to a final state containing a ${{\mathit W}}$ boson and a 125 GeV Higgs boson, plus missing transverse momentum. No excess beyond the Standard Model expectation is observed. Exclusion limits are derived in simplified models of direct chargino and next-to-lightest neutralino production, with the decays ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ and ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ having 100$\%$ branching fraction, see Fig. 8. A combination of the multiple final states for the Higgs decay yields the best limits (Fig. 8d).
31  AAD 2015CA searched in 20.3 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with one or more photons and $\not E_T$, with or without leptons (${{\mathit e}}$, ${{\mathit \mu}}$). No significant excess above the Standard Model expectations is observed. Limits are set on wino masses in the general gauge-mediated SUSY breaking model (GGM), for wino-like NLSP, see Fig. 9, 12
32  AAD 2014H searched in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for electroweak production of charginos and neutralinos decaying to a final sate with three leptons and missing transverse momentum. No excess beyond the Standard Model expectation is observed. Exclusion limits are derived in simplified models of direct chargino and next-to-lightest neutralino production, with decays to the lightest neutralino via either all three generations of leptons, staus only, gauge bosons, or Higgs bosons, see Fig. 7. An interpretation in the pMSSM is also given, see Fig. 8.
33  AAD 2014X searched in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with at least four leptons (electrons, muons, taus) in the final state. No significant excess above the Standard Model expectations is observed. Limits are set on the wino-like chargino mass in an R-parity violating simplified model where the decay ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{(*)\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , with ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ $\rightarrow$ ${{\mathit \ell}^{\pm}}{{\mathit \ell}^{\mp}}{{\mathit \nu}}$ , takes place with a branching ratio of 100$\%$, see Fig. 8.
34  KHACHATRYAN 2014L searched in 19.5 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for evidence of chargino-neutralino ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ pair production with Higgs or ${{\mathit W}}$-bosons in the decay chain, leading to ${{\mathit H}}{{\mathit W}}$ final states with missing transverse energy. The decays of a Higgs boson to a photon pair are considered in conjunction with hadronic and leptonic decay modes of the ${{\mathit W}}$ bosons. No significant excesses over the expected SM backgrounds are observed. The results are interpreted in the context of simplified models where the decays ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\mathit H}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\mathit W}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ take place 100$\%$ of the time, see Figs. $22 - 23$.
35  AAD 2013 searched in 4.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for charginos and neutralinos decaying to a final state with three leptons (${{\mathit e}}$ and ${{\mathit \mu}}$) and missing transverse energy. No excess beyond the Standard Model expectation is observed. Exclusion limits are derived in the phenomenological MSSM, see Fig. 2 and 3, and in simplified models, see Fig. 4. For the simplified models with intermediate slepton decays, degenerate ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ and ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ masses up to 500 GeV are excluded at 95$\%$ C.L. for very large mass differences with the ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$. Supersedes AAD 2012AS.
36  AAD 2013B searched in 4.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for gauginos decaying to a final state with two leptons (${{\mathit e}}$ and ${{\mathit \mu}}$) and missing transverse energy. No excess beyond the Standard Model expectation is observed. Limits are derived in a simplified model of wino-like chargino pair production, where the chargino always decays to the lightest neutralino via an intermediate on-shell charged slepton, see Fig. 2(b). Chargino masses between 110 and 340 GeV are excluded at 95$\%$ C.L. for ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 10 GeV. Exclusion limits are also derived in the phenomenological MSSM, see Fig. 3.
37  AAD 2012CT searched in 4.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for events containing four or more leptons (electrons or muons) and either moderate values of missing transverse momentum or large effective mass. No significant excess is found in the data. Limits are presented in a simplified model of R-parity violating supersymmetry in which charginos are pair-produced and then decay into a ${{\mathit W}}$-boson and a ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$, which in turn decays through an RPV coupling into two charged leptons ( ${{\mathit e}^{\pm}}{{\mathit e}^{\mp}}$ or ${{\mathit e}^{\pm}}{{\mathit \mu}^{\mp}}$ ) and a neutrino. In this model, chargino masses up to 540 GeV are excluded at 95$\%$ C.L. for ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ above 300 GeV, see Fig. 3a. The limit deteriorates for lighter ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$. Limits are also set in an R-parity violating mSUGRA model, see Fig. 3b.
38  CHATRCHYAN 2012BJ searched in 4.98 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for direct electroweak production of charginos and neutralinos in events with at least two leptons, jets and missing transverse momentum. No significant excesses over the expected SM backgrounds are observed and 95$\%$ C.L. limits on the production cross section of ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ pair production were set in a number of simplified models, see Figs. 7 to 12.
39  ABDALLAH 2003M uses data from $\sqrt {s }$ = $192 - 208$ GeV to obtain limits in the framework of the MSSM with gaugino and sfermion mass universality at the GUT scale. An indirect limit on the mass of charginos is derived by constraining the MSSM parameter space by the results from direct searches for neutralinos (including cascade decays), for charginos and for sleptons. These limits are valid for values of $\mathit M_{2}<$ 1 TeV, $\vert {{\mathit \mu}}\vert {}\leq{}$2 TeV with the ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ as LSP. Constraints from the Higgs search in the $\mathit m{}^{{\mathrm {max}}}_{h}$ scenario assuming ${\mathit m}_{{{\mathit t}}}$= 174.3$~$GeV are included. The quoted limit applies if there is no mixing in the third family or when ${\mathit m}_{{{\widetilde{\mathit \tau}}_{{1}}}}\text{-}{\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}>$ 6 GeV. If mixing is included the limit degrades to 90 GeV. See Fig.~43 for the mass limits as a function of tan $\beta$. These limits update the results of ABREU 2000W.
40  KHACHATRYAN 2016AA searched in 7.4 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with one or more photons, hadronic jets and $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on wino masses in the general gauge-mediated SUSY breaking model (GGM), for a wino-like neutralino NLSP scenario and with the wino mass fixed at 10 GeV above the bino mass, see Fig. 4. Limits are also set in the Tchi1chi1A and Tchi1n1A simplified models, see Fig. 3.
41  KHACHATRYAN 2016R searched in 19.7 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with one or more photons, one electron or muon, and $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are also set in the Tglu1F simplified model, see Fig. 6.
42  KHACHATRYAN 2016Y searched in 19.7 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for events with one or two soft isolated leptons, hadronic jets, and $\not E_T$. No significant excess above the Standard Model expectations is observed. Limits are set on the ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ mass (which is degenerate with the ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$) in the Tchi1n2A simplified model, see Fig. 4.
43  AAD 2014AV searched in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for the direct production of charginos, neutralinos and staus in events containing at last two hadronically decaying ${{\mathit \tau}}$-leptons, large missing transverse momentum and low jet activity. The quoted limit was derived for direct ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ production with ${{\widetilde{\mathit \chi}}_{{2}}^{0}}$ $\rightarrow$ ${{\widetilde{\mathit \tau}}}{{\mathit \tau}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \tau}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\widetilde{\mathit \tau}}}{{\mathit \nu}}$( ${{\widetilde{\mathit \nu}}_{{\tau}}}{{\mathit \tau}}$) $\rightarrow$ ${{\mathit \tau}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{2}}^{0}}}$ = ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$, ${\mathit m}_{{{\widetilde{\mathit \tau}}}}$ = 0.5 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ + ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV. No excess over the expected SM background is observed. Exclusion limits are set in simplified models of ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ pair production, see their Figure 7. Upper limits on the cross section and signal strength for direct di-stau production are derived, see Figures 8 and 9. Also, limits are derived in a pMSSM model where the only light slepton is the ${{\widetilde{\mathit \tau}}_{{R}}}$, see Figure 10.
44  AAD 2014AV searched in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for the direct production of charginos, neutralinos and staus in events containing at last two hadronically decaying ${{\mathit \tau}}$-leptons, large missing transverse momentum and low jet activity. The quoted limit was derived for direct ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ production with ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}$ $\rightarrow$ ${{\widetilde{\mathit \tau}}}{{\mathit \nu}}$( ${{\widetilde{\mathit \nu}}_{{\tau}}}{{\mathit \tau}}$) $\rightarrow$ ${{\mathit \tau}}{{\mathit \nu}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ , ${\mathit m}_{{{\widetilde{\mathit \tau}}}}$ = 0.5 (${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{\pm}}}$ + ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$), ${\mathit m}_{{{\widetilde{\mathit \chi}}_{{1}}^{0}}}$ = 0 GeV. No excess over the expected SM background is observed. Exclusion limits are set in simplified models of ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{1}}^{\mp}}$ and ${{\widetilde{\mathit \chi}}_{{1}}^{\pm}}{{\widetilde{\mathit \chi}}_{{2}}^{0}}$ pair production, see their Figure 7. Upper limits on the cross section and signal strength for direct di-stau production are derived, see Figures 8 and 9. Also, limits are derived in a pMSSM model where the only light slepton is the ${{\widetilde{\mathit \tau}}_{{R}}}$, see Figure 10.
45  AAD 2014G searched in 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for electroweak production of chargino pairs, or chargino-neutralino pairs, decaying to a final sate with two leptons (${{\mathit e}}$ and ${{\mathit \mu}}$) and missing transverse momentum. No excess beyond the Standard Model expectation is observed. Exclusion limits are derived in simplified models of chargino pair production, with chargino decays to the lightest neutralino via either sleptons or gauge bosons, see Fig 5.; or in simplified models of chargino and next-to-lightest neutralino production, with decays to the lightest neutralino via gauge bosons, see Fig. 7. An interpretation in the pMSSM is also given, see Fig. 10.
46  AALTONEN 2014 searched in 5.8 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV for evidence of chargino and next-to-lightest neutralino associated production in final states consisting of three leptons (electrons, muons or taus) and large missing transverse momentum. The results are consistent with the Standard Model predictions within 1.85 $\sigma$. Limits on the chargino mass are derived in an mSUGRA model with ${\mathit m}_{\mathrm {0}}$ = 60 GeV, tan ${{\mathit \beta}}$ = 3, ${{\mathit A}_{{0}}}$ = 0 and ${{\mathit \mu}}$ $>$0, see their Fig. 2.
47  KHACHATRYAN 2014I searched in 19.5 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV for electroweak production of chargino pairs decaying to a final state with opposite-sign lepton pairs (${{\mathit e}}$ or ${{\mathit \mu}}$) and missing transverse momentum. No excess beyond the Standard Model expectation is observed. Exclusion limits are derived in simplified models, see Fig. 18.
48  AALTONEN 2013Q searched in 6.0 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV for evidence of chargino-neutralino associated production in like-sign dilepton final states. One lepton is identified as the hadronic decay of a tau lepton, while the other is an electron or muon. Good agreement with the Standard Model predictions is observed and limits are set on the chargino-neutralino cross section for simplified gravity- and gauge-mediated models, see their Figs. 2 and 3.
49  AAD 2012AS searched in 2.06 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for charginos and neutralinos decaying to a final state with three leptons (${{\mathit e}}$ and ${{\mathit \mu}}$) and missing transverse energy. No excess beyond the Standard Model expectation is observed. Exclusion limits are derived in the phenomenological MSSM, see Fig. 2 (top), and in simplified models, see Fig. 2 (bottom).
50  AAD 2012T looked in 1 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons (${{\mathit e}}$ or ${{\mathit \mu}}$). Opposite-sign and same-sign dilepton events were separately studied. Additionally, in opposite-sign events, a search was made for an excess of same-flavor over different-flavor lepton pairs. No excess over the expected background is observed and limits are placed on the effective production cross section of opposite-sign dilepton events with $\not E_T$ $>$ 250 GeV and on same-sign dilepton events with $\not E_T$ $>$ 100 GeV. The latter limit is interpreted in a simplified electroweak gaugino production model as a lower chargino mass limit.
51  CHATRCHYAN 2011B looked in 35 pb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$=7 TeV for events with an isolated lepton (${{\mathit e}}$ or ${{\mathit \mu}}$), a photon and $\not E_T$ which may arise in a generalized gauge mediated model from the decay of Wino-like NLSPs. No evidence for an excess over the expected background is observed. Limits are derived in the plane of squark/gluino mass versus Wino mass (see Fig. 4). Mass degeneracy of the produced squarks and gluinos is assumed.
52  CHATRCHYAN 2011V looked in 35 pb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for events with ${}\geq{}$3 isolated leptons (${{\mathit e}}$, ${{\mathit \mu}}$ or ${{\mathit \tau}}$), with or without jets and $\not E_T$. No evidence for an excess over the expected background is observed. Limits are derived in the CMSSM (${{\mathit m}_{{0}}}$, ${{\mathit m}_{{1/2}}}$) plane for tan ${{\mathit \beta}}$ = 3 (see Fig. 5).
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