Supersymmetry Miscellaneous Results INSPIRE search

Results that do not appear under other headings or that make nonminimal assumptions.

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 CL% DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$> 65$ 95 1
AABOUD
2016AF
ATLS selected ATLAS searches on EWK sector
$\text{ none 0 - 2}$ 95 2
AAD
2016AG
ATLS dark photon, ${{\mathit \gamma}_{{d}}}$, in SUSY- and Higgs-portal models
3
AAD
2013P
ATLS dark ${{\mathit \gamma}}$, hidden valley
4
AALTONEN
2012AB
CDF hidden-valley Higgs
$\text{none 100 - 185}$ 95 5
AAD
2011AA
ATLS scalar gluons
6
CHATRCHYAN
2011E
CMS ${{\mathit \mu}}{{\mathit \mu}}$ resonances
7
ABAZOV
2010N
D0 ${{\mathit \gamma}_{{D}}}$, hidden valley
1  AABOUD 2016AF uses a selection of searches by ATLAS for the electroweak production of SUSY particles studying resulting constraints on dark matter candidates. They use 20 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. A likelihood-driven scan of an effective model focusing on the gaugino-higgsino and Higgs sector of the pMSSM is performed. The ATLAS searches impact models where ${\mathit m}_{{{\mathit \chi}_{{1}}^{0}}}$ $<$ 65 GeV, excluding 86$\%$ of them. See their Figs. 2, 4, and 6.
2  AAD 2016AG searches for prompt lepton-jets using 20 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV collected with the ATLAS detector. Lepton-jets are expected from decays of low-mass dark photons in SUSY-portal and Higgs-portal models. No significant excess of events is observed and 95$\%$ CL upper limits are computed on the production cross section times branching ratio for two prompt lepton-jets in models predicting 2 or 4 ${{\mathit \gamma}_{{d}}}$ via SUSY-portal topologies, for ${{\mathit \gamma}_{{d}}}$ mass values between 0 and 2 GeV. See their Figs 9 and 10. The results are also interpreted in terms of a 90$\%$ CL exclusion region in kinetic mixing and dark-photon mass parameter space. See their Fig. 13.
3  AAD 2013P searched in 5 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for single lepton-jets with at least four muons; pairs of lepton-jets, each with two or more muons; and pairs of lepton-jets with two or more electrons. All of these could be signatures of Hidden Valley supersymmetric models. No statistically significant deviations from the Standard Model expectations are found. 95$\%$ C.L. limits are placed on the production cross section times branching ratio of dark photons for several parameter sets of a Hidden Valley model.
4  AALTONEN 2012AB looked in 5.1 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV for anomalous production of multiple low-energy leptons in association with a ${{\mathit W}}$ or ${{\mathit Z}}$ boson. Such events may occur in hidden valley models in which a supersymmetric Higgs boson is produced in association with a ${{\mathit W}}$ or ${{\mathit Z}}$ boson, with ${{\mathit H}}$ $\rightarrow$ ${{\widetilde{\mathit \chi}}_{{1}}^{0}}{{\widetilde{\mathit \chi}}_{{1}}^{0}}$ pair and with the ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ further decaying into a dark photon (${{\mathit \gamma}_{{D}}}$) and the unobservable lightest SUSY particle of the hidden sector. As the ${{\mathit \gamma}_{{D}}}$ is expected to be light, it may decay into a lepton pair. No significant excess over the SM expectation is observed and a limit at 95$\%$ C.L. is set on the cross section for a benchmark model of supersymmetric hidden-valley Higgs production.
5  AAD 2011AA looked in 34 pb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for events with ${}\geq{}$4 jets originating from pair production of scalar gluons, each decaying to two gluons. No two-jet resonances are observed over the SM background. Limits are derived on the cross section times branching ratio (see Fig. 3). Assuming 100$\%$ branching ratio for the decay to two gluons, the quoted exclusion range is obtained, except for a 5 GeV mass window around 140 GeV.
6  CHATRCHYAN 2011E looked in 35 pb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV for events with collimated ${{\mathit \mu}}$ pairs (leptonic jets) from the decay of hidden sector states. No evidence for new resonance production is found. Limits are derived and compared to various SUSY models (see Fig. 4) where the LSP, either the ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ or a ${{\widetilde{\mathit q}}}$, decays to dark sector particles.
7  ABAZOV 2010N looked in 5.8 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV for events from hidden valley models in which a ${{\widetilde{\mathit \chi}}_{{1}}^{0}}$ decays into a dark photon, ${{\mathit \gamma}_{{D}}}$, and the unobservable lightest SUSY particle of the hidden sector. As the ${{\mathit \gamma}_{{D}}}$ is expected to be light, it may decay into a tightly collimated lepton pair, called lepton jet. They searched for events with $\not E_T$ and two isolated lepton jets observable by an opposite charged lepton pair ${{\mathit e}}{{\mathit e}}$ , ${{\mathit e}}{{\mathit \mu}}$ or ${{\mathit \mu}}{{\mathit \mu}}$ . No significant excess over the SM expectation is observed, and a limit at 95$\%$ C.L. on the cross section times branching ratio is derived, see their Table I. They also examined the invariant mass of the lepton jets for a narrow resonance, see their Fig. 4, but found no evidence for a signal.
  References:
AABOUD 2016AF
JHEP 1609 175 Dark Matter Interpretations of ATLAS Searches for the Electroweak Production of Supersymmetric Particles in $\sqrt {s }$ = 8 TeV Proton-Proton Collisions
AAD 2016AG
JHEP 1602 062 A Search for Prompt Lepton-Jets in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
AAD 2013P
PL B719 299 A Search for Prompt Lepton-Jets in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector
AALTONEN 2012AB
PR D85 092001 Search for Anomalous Production of Multiple Leptons in Association with ${{\mathit W}}$ and ${{\mathit Z}}$ Bosons at CDF
AAD 2011AA
EPJ C71 1828 Search for Massive Colored Scalars in Four-Jet Final States in $\sqrt {s }$ = 7 TeV Proton$−$Proton Collisions with the ATLAS Detector
CHATRCHYAN 2011E
JHEP 1107 098 Search for Light Resonances Decaying into Pairs of Muons as a Signal of New Physics
ABAZOV 2010N
PRL 105 211802 Search for Events with Leptonic Jets and Missing Transverse Energy in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV
PDG 2014
CP C38 070001 Review of Particle Physics 2014