TY  - SER
AU  - Abbott,B.
AU  - Abbott,D.C.
AU  - Chelkov,G.A.
AU  - Khodinov,A.
AU  - Parida,B.
AU  - Tsybychev,D.
AU  - Vaniachine,A.
AU  - Aad,G.
TI  - Search for high-mass dilepton resonances using 139 fb−1 of pp collision data collected at √s=13 TeV with the ATLAS detector
KW  - Большой адронный коллайдер
KW  - протон-протонные столкновения
KW  - ATLAS, детектор
KW  - статьи в журналах
N1  - Библиогр.: 56 назв
N2  - A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6 TeV is presented. The data were recorded by the ATLAS experiment in proton–proton collisions at a centre-ofmass energy of √s = 13 TeV during Run 2 of the Large Hadron Collider and correspond to an integrated luminosity of 139 fb−1. A functional form is fitted to the dilepton invariant-mass distribution to model the contribution from background processes, and a generic signal shape is used to determine the significance of observed deviations from this background estimate. No significant deviation is observed and upper limits are placed at the 95% confidence level on the fiducial cross-section times branching ratio for various resonance width hypotheses. The derived limits are shown to be applicable to spin-0, spin-1 and spin-2 signal hypotheses. For a set of benchmark models, the limits are converted into lower limits on the resonance mass and reach 4.5 TeV for the E6-motivated Z ψ boson. Also presented are limits on Heavy Vector Triplet model couplings
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000674649
ER  -