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Search for new high-mass phenomena in the dilepton final state using 36.1 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector

The ATLAS collaboration
No Journal Information, 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. The dilepton invariant mass is used as the discriminating variable. 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 23.5 TeV and 40.1 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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