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Search for new high-mass phenomena in the dilepton final state using 36 fb$^{−1}$ of proton-proton collision data at $ \sqrt{s}=13 $ TeV with the ATLAS detector

The ATLAS collaboration
JHEP 10 (2017) 182, 2017.

Abstract
A search is conducted for new resonant and non-resonant high-mass phenomena in dielectron and dimuon final states. The search uses 36.1 fb$^{-1}$ of proton-proton collision data, collected at $\sqrt{s}$ = 13 TeV by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% credibility level are set on the cross-section times branching ratio for resonances decaying into dileptons, which are converted to lower limits on the resonance mass, up to 4.1 for the E$_{6}$-motivated Z'$_{\chi}$. Lower limits on the $qq \ell\ell$ contact interaction scale are set between 24 TeV and 40 TeV, depending on the model.

  • Table 1

    Data from Figure 4 of the Aux Material

    10.17182/hepdata.79077.v1/t1

    Product of acceptance and efficiency for the dielectron (upper curve) and dimuon (lower curve) selections as a function of the...

  • Table 2

    Data from Figure 1a

    10.17182/hepdata.79077.v1/t2

    Distribution of dielectron reconstructed invariant mass after selection, for data and the SM background estimates.

  • Table 3

    Data from Figure 1b

    10.17182/hepdata.79077.v1/t3

    Distribution of dimuon reconstructed invariant mass after selection, for data and the SM background estimates.

  • Table 4

    Data from Figure 7a of the Aux Material

    10.17182/hepdata.79077.v1/t4

    Upper 95% CL limits on the Z' production cross-section times branching ratio to two electrons as a function of Z'...

  • Table 5

    Data from Figure 7b of the Aux Material

    10.17182/hepdata.79077.v1/t5

    Upper 95% CL limits on the Z' production cross-section times branching ratio to two muons as a function of Z'...

  • Table 6

    Data from Figure 4

    10.17182/hepdata.79077.v1/t6

    Upper 95% CL limits on the Z' production cross-section times branching ratio to two leptons as a function of Z'...

  • Table 7

    Data from Figure 8a of the Aux Material

    10.17182/hepdata.79077.v1/t7

    Upper 95% CL limits on the acceptance times Z' production cross-section times branching ratio to two leptons in the dielectron...

  • Table 8

    Data from Figure 8b of the Aux Material

    10.17182/hepdata.79077.v1/t8

    Upper 95% CL limits on the acceptance times Z' production cross-section times branching ratio to two leptons in the dielectron...

  • Table 9

    Data from Figure 9a of the Aux Material

    10.17182/hepdata.79077.v1/t9

    Upper 95% CL limits on the acceptance times Z' production cross-section times branching ratio to two leptons in the dimuon...

  • Table 10

    Data from Figure 9b of the Aux Material

    10.17182/hepdata.79077.v1/t10

    Upper 95% CL limits on the acceptance times Z' production cross-section times branching ratio to two leptons in the dimuon...

  • Table 11

    Data from Figure 6a

    10.17182/hepdata.79077.v1/t11

    Upper 95% CL limits on the acceptance times Z' production cross-section times branching ratio to two leptons in the combined...

  • Table 12

    Data from Figure 6b

    10.17182/hepdata.79077.v1/t12

    Upper 95% CL limits on the acceptance times Z' production cross-section times branching ratio to two leptons in the dilepton...

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