SCALE LIMITS for Contact Interactions: $\Lambda\mathrm {( {{\mathit e}} {{\mathit e}} {{\mathit q}} {{\mathit q}} )}$

INSPIRE   PDGID:
S054CTH
Limits are for $\Lambda_{LL}^{\pm}$ only. For other cases, see each reference.
$\Lambda_{LL}^+({\mathrm {TeV}}$) $\Lambda_{LL}^-({\mathrm {TeV}}$) CL% DOCUMENT ID TECN  COMMENT
$ > 23.5 $ > 26.1 95 1
AAD
2021Q
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 19.5 $ > 24.0 95 2
SIRUNYAN
2021N
 CMS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ >23.5 $ >26.1 95 3
AAD
2020AP
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 4.5 $ > 12.8 95 4
ABRAMOWICZ
2019
ZEUS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ >16.8 $ > 23.9 95 5
SIRUNYAN
2019AC
 CMS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ \bf{>24} $ >37 95 6
AABOUD
2017AT
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 8.4 $ $\mathbf {>10.2}$ 95 7
ABDALLAH
2009
DLPH ( ${{\mathit e}}{{\mathit e}}{{\mathit b}}{{\mathit b}}$ )
$ \bf{> 9.4} $ >5.6 95 8
SCHAEL
2007A
 ALEP ( ${{\mathit e}}{{\mathit e}}{{\mathit c}}{{\mathit c}}$ )
$ \mathbf { > 9.4} $ >4.9 95 7
SCHAEL
2007A
 ALEP ( ${{\mathit e}}{{\mathit e}}{{\mathit b}}{{\mathit b}}$ )
$ \bf{>23.3} $ >12.5 95 9
CHEUNG
2001B
 RVUE ( ${{\mathit e}}{{\mathit e}}{{\mathit u}}{{\mathit u}}$ )
$ \bf{>11.1} $ >26.4 95 9
CHEUNG
2001B
 RVUE ( ${{\mathit e}}{{\mathit e}}{{\mathit d}}{{\mathit d}}$ )
• • We do not use the following data for averages, fits, limits, etc. • •
$ > 7.1 $ > 7.1 95 10
AAD
2021AU
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit b}}{{\mathit s}}$ )
$ > 15.5 $ > 19.5 95 11
AABOUD
2016U
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 13.5 $ >18.3 95 12
KHACHATRYAN
2015AE
 CMS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 16.4 $ > 20.7 95 13
AAD
2014BE
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 9.5 $ > 12.1 95 14
AAD
2013E
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 10.1 $ > 9.4 95 15
AAD
2012AB
 ATLS ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 4.2 $ > 4.0 95 16
AARON
2011C
 H1 ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 3.8 $ > 3.8 95 17
ABDALLAH
2011
DLPH ( ${{\mathit e}}{{\mathit e}}{{\mathit t}}{{\mathit c}}$ )
$ > 12.9 $ > 7.2 95 18
SCHAEL
2007A
 ALEP ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
$ > 3.7 $ > 5.9 95 19
ABULENCIA
2006L
 CDF ( ${{\mathit e}}{{\mathit e}}{{\mathit q}}{{\mathit q}}$ )
1  AAD 2021Q limits are from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. A frequentist statistical framework is used to remove the prior dependence.
2  SIRUNYAN 2021N limits are from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ mass distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.
3  AAD 2020AP limits are from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ mass distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.
4  ABRAMOWICZ 2019 limits are from Q${}^{2}$ spectrum measurements of ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{\pm}}{{\mathit X}}$ .
5  SIRUNYAN 2019AC limits are from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ mass distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV.
6  AABOUD 2017AT limits are from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit uses a uniform positive prior in 1/${{\mathit \Lambda}^{2}}$.
7  ABDALLAH 2009 and SCHAEL 2007A limits are from $\mathit R_{b}$, $\mathit A{}^{b}_{FB}$.
8  SCHAEL 2007A limits are from $\mathit R_{c}$, $\mathit Q{}^{depl}_{FB}$, and hadronic cross section measurements.
9  CHEUNG 2001B is an update of BARGER 1998E.
10  AAD 2021AU search for new phenomena in final states with ${{\mathit e}^{+}}{{\mathit e}^{-}}$ and one or no ${{\mathit b}}$-tagged jets in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limits assume ${{\mathit g}_{{*}}^{2}}$ = 4 $\pi $.
11  AABOUD 2016U limits are from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. The quoted limit uses a uniform positive prior in 1/${{\mathit \Lambda}^{2}}$.
12  KHACHATRYAN 2015AE limit is from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ mass distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV.
13  AAD 2014BE limits are from ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. The quoted limit uses a uniform positive prior in 1/${{\mathit \Lambda}^{2}}$.
14  AAD 2013E limis are from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ mass distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV.
15  AAD 2012AB limis are from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ mass distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 7 TeV.
16  AARON 2011C limits are from ${{\mathit Q}^{2}}$ spectrum measurements of ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit e}^{\pm}}{{\mathit X}}$ .
17  ABDALLAH 2011 limit is from ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit c}}}$ cross section. ${{\mathit \Lambda}_{{LL}}}$ = ${{\mathit \Lambda}_{{LR}}}$ = ${{\mathit \Lambda}_{{RL}}}$ = ${{\mathit \Lambda}_{{RR}}}$ is assumed.
18  SCHAEL 2007A limit assumes quark flavor universality of the contact interactions.
19  ABULENCIA 2006L limits are from ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV.
References:
AAD 2021AU
PRL 127 141801 Search for New Phenomena in Final States with Two Leptons and One or No $b$-Tagged Jets at $\sqrt{s} = 13$ TeV Using the ATLAS Detector
AAD 2021Q
JHEP 2104 142 Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector
SIRUNYAN 2021N
JHEP 2107 208 Search for resonant and nonresonant new phenomena in high-mass dilepton final states at $ \sqrt{s} $ = 13 TeV
AAD 2020AP
JHEP 2011 005 Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector
ABRAMOWICZ 2019
PR D99 092006 Limits on contact interactions and leptoquarks at HERA
SIRUNYAN 2019AC
JHEP 1904 114 Search for contact interactions and large extra dimensions in the dilepton mass spectra from proton-proton collisions at $\sqrt{s} =$ 13 TeV
AABOUD 2017AT
JHEP 1710 182 Search for New High-Mass Phenomena in the Dilepton Final State using 36 ${\mathrm {fb}}{}^{-1}$ of Proton-Proton Collision Data at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
AABOUD 2016U
PL B761 372 Search for High-Mass New Phenomena in the Dilepton Final State using Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
KHACHATRYAN 2015AE
JHEP 1504 025 Search for Physics Beyond the Standard Model in Dilepton Mass Spectra in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
AAD 2014BE
EPJ C74 3134 Search for Contact Interactions and Large Extra Dimensions in the Dilepton Channel using Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
AAD 2013E
PR D87 015010 Search for Contact Interactions and Large Extra Dimensions in Dilepton Events from ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector
AAD 2012AB
PL B712 40 Search for Contact Interactions in Dilepton Events from ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector
AARON 2011C
PL B705 52 Search for Contact Interactions in ${{\mathit e}^{\pm}}{{\mathit p}}$ Collisions at HERA
ABDALLAH 2011
EPJ C71 1555 Search for Single Top Quark Production via Contact Interactions at LEP2
ABDALLAH 2009
EPJ C60 1 A Study of ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ Production in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at $\sqrt {s }$ = $130 - 207~$GeV
SCHAEL 2007A
EPJ C49 411 Fermion Pair Production in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at $189 - 209$ GeV and Constraints on Physics Beyond the Standard Model
ABULENCIA 2006L
PRL 96 211801 Search for ${{\mathit Z}^{\,'}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ using Dielectron Mass and Angular Distribution
CHEUNG 2001B
PL B517 167 Constraints on Electron Quark Contact Interactions and Implications to Models of Leptoquarks and Extra ${{\mathit Z}}$ Bosons