# SCALE LIMITS for Contact Interactions: $\Lambda\mathrm {( {{\boldsymbol q}} {{\boldsymbol q}} {{\boldsymbol q}} {{\boldsymbol q}} )}$ INSPIRE search

$\Lambda_{LL}^+({\mathrm {TeV}}$) $\Lambda_{LL}^-({\mathrm {TeV}}$) CL% DOCUMENT ID TECN  COMMENT
$\bf{\text{>13.1 none 17.4 - 29.5}}$ $\bf{> 21.8}$ 95 1
 2017 AK
ATLS ${{\mathit p}}{{\mathit p}}$ dijet angl.
• • • We do not use the following data for averages, fits, limits, etc. • • •
$> 11.5$ $> 14.7$ 95 2
 2017 F
CMS ${{\mathit p}}{{\mathit p}}$ dijet angl.
$> 12.0$ $> 17.5$ 95 3
 2016 S
ATLS ${{\mathit p}}{{\mathit p}}$ dijet angl.
4
 2015 AR
ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$
5
 2015 BY
ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$
$> 8.1$ $> 12.0$ 95 6
 2015 L
ATLS ${{\mathit p}}{{\mathit p}}$ dijet angl.
$> 9.0$ $> 11.7$ 95 7
 2015 J
CMS ${{\mathit p}}{{\mathit p}}$ dijet angl.
$> 5$ 95 8
 2014
RVUE ${{\mathit q}}{{\overline{\mathit q}}}{{\mathit t}}{{\overline{\mathit t}}}$
1  AABOUD 2017AK limit is from dijet angular distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 13 TeV. ${{\mathit u}}$, ${{\mathit d}}$, and ${{\mathit s}}$ quarks are assumed to be composite.
2  SIRUNYAN 2017F limit is from dijet angular cross sections in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. All quarks are assumed to be composite.
3  AAD 2016S limit is from dijet angular selections in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. ${{\mathit u}}$, ${{\mathit d}}$, and ${{\mathit s}}$ quarks are assumed to be composite.
4  AAD 2015AR obtain limit on the ${{\mathit t}_{{R}}}$ compositeness 2$\pi /{{\mathit \Lambda}_{{RR}}^{2}}$ $<$ 6.6 TeV${}^{-2}$ at 95$\%$ CL from the ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$ production in the ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV.
5  AAD 2015BY obtain limit on the ${{\mathit t}_{{R}}}$ compositeness 2$\pi /{{\mathit \Lambda}}{}^{2}_{RR}$ $<$ 15.1 TeV${}^{-2}$ at 95$\%$ CL from the ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$ production in the ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV.
6  AAD 2015L limit is from dijet angular distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. ${{\mathit u}}$, ${{\mathit d}}$, and ${{\mathit s}}$ quarks are assumed to be composite.
7  KHACHATRYAN 2015J limit is from dijet angular distribution in ${{\mathit p}}{{\mathit p}}$ collisions at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. ${{\mathit u}}$, ${{\mathit d}}$, ${{\mathit s}}$, ${{\mathit c}}$, and ${{\mathit b}}$ quarks are assumed to be composite.
8  FABBRICHESI 2014 obtain bounds on chromoelectric and chromomagnetic form factors of the top-quark using ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$ and ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$ cross sections. The quoted limit on the ${{\mathit q}}{{\overline{\mathit q}}}{{\mathit t}}{{\overline{\mathit t}}}$ contact interaction is derived from their bound on the chromoelectric form factor.
References:
 AABOUD 2017AK
PR D96 052004 Search for New Phenomena in Dijet Events using 37 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ Collision Data Collected at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
 SIRUNYAN 2017F
JHEP 1707 013 Search for New Physics with Dijet Angular Distributions in Proton-Proton Collisions at $\sqrt {s }$ = 13 TeV
PL B754 302 Search for New Phenomena in Dijet Mass and Angular Distributions from ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV with the ATLAS Detector
PRL 114 221802 Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV Measured with the ATLAS Detector
JHEP 1510 150 Analysis of Events with ${\mathit {\mathit b}}$-Jets and a Pair of Leptons of the Same Charge in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
JHEP 1508 105 Search for Production of Vector-Like Quark Pairs and of Four Top Quarks in the Lepton-plus-Jets Final State in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
PL B746 79 Search for Quark Contact Interactions and Extra Spatial Dimensions using Dijet Angular Distributions in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV
PR D89 074028 Stringent Limits on top-Quark Compositeness from ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production at the Tevatron and the LHC