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A search for pair-produced resonances in four-jet final states at $\sqrt{s}$=13 TeV with the ATLAS detector

The collaboration
No Journal Information, 2017

Abstract
A search for massive coloured resonances which are pair-produced and decay into two jets is presented. The analysis uses 36.7 fb$^{-1}$ of $\sqrt{s}=$ 13 TeV pp collision data recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the background prediction is observed. Results are interpreted in a SUSY simplified model where the lightest supersymmetric particle is the top squark, $\tilde{t}$, which decays promptly into two quarks through $R$-parity-violating couplings. Top squarks with masses in the range 100 GeV<$m_{\tilde{t}}$<410 GeV are excluded at 95% confidence level. If the decay is into a $b$-quark and a light quark, a dedicated selection requiring two $b$-tags is used to exclude masses in the ranges 100 GeV<$m_{\tilde{t}}$<470 GeV and 480 GeV<$m_{\tilde{t}}$<610 GeV. Additional limits are set on the pair-production of massive colour-octet resonances.

• #### Overview

10.17182/hepdata.79059.v1/t1

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• #### Cutflow Table 1

Data from Table 1

10.17182/hepdata.79059.v1/t2

Cutflow table for a pair produced top squark of 100 GeV decaying into a b- and an s-quark.

• #### Cutflow Table 2

Data from Table 1

10.17182/hepdata.79059.v1/t3

Cutflow table for a pair produced top squark of 500 GeV decaying into a b- and an s-quark.

• #### Cutflow Table 3

Data from Table 1

10.17182/hepdata.79059.v1/t4

Cutflow table for a pair produced coloron of 1500 GeV decaying into two quarks.

• #### SR distribution 1

Data from Table 3

10.17182/hepdata.79059.v1/t5

The observed number of data, background and top squark signal events in each of the signal regions of the inclusive...

• #### SR distribution 2

Data from Table 4

10.17182/hepdata.79059.v1/t6

The observed number of data, background and coloron signal events in each of the signal regions of the inclusive selection

• #### SR distribution 3

Data from Table 5

10.17182/hepdata.79059.v1/t7

The observed number of data, background and top squark signal events in each of the signal regions of the b-tagged...

• #### Acceptance 1

Data from Auxiliary Table 6

10.17182/hepdata.79059.v1/t8

Signal acceptance and efficiency (in %) as a function of M(STOP), before mass windows

• #### Acceptance 2

Data from Auxiliary Table 6

10.17182/hepdata.79059.v1/t9

Signal acceptance (in %) and efficiency as a function of M(STOP), after mass windows

• #### Acceptance 3

Data from Auxiliary Table 7

10.17182/hepdata.79059.v1/t10

Signal acceptance and efficiency (in %) as a function of M(RHO), before mass windows

• #### Acceptance 4

Data from Auxiliary Table 7

10.17182/hepdata.79059.v1/t11

Signal acceptance and efficiency (in %) as a function of M(RHO), after mass windows

• #### Acceptance 5

Data from Auxiliary Table 8

10.17182/hepdata.79059.v1/t12

Signal acceptance (in %) and efficiency as a function of M(STOP), before mass windows

• #### Acceptance 6

Data from Auxiliary Table 8

10.17182/hepdata.79059.v1/t13

Signal acceptance (in %) and efficiency as a function of M(STOP), after mass windows

• #### Limit on cross section 1

Data from Auxiliary Table 9

10.17182/hepdata.79059.v1/t14

Cross section excluded at 95% CL as a function of the top squark mass, for a pair produced top squark...

• #### Limit on cross section 2

Data from Auxiliary Table 10

10.17182/hepdata.79059.v1/t15

Cross section excluded at 95% CL as a function of the cooron mass, for a pair produced coloron with decays...

• #### Limit on cross section 3

Data from Auxiliary Table 11

10.17182/hepdata.79059.v1/t16

Cross section excluded at 95% CL as a function of the top squark mass, for a pair produced top squark...