Measurements of production cross sections of polarized same-sign W boson pairs in association with two jets in proton-proton collisions at s√= 13 TeV (CROSBI ID 307926)
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Podaci o odgovornosti
Sirunyan, Albert M ; ... ; Antunović, Željko ; Brigljević, Vuko ; Ferenček, Dinko ; Giljanović, Duje ; Godinović, Nikola ; Kovač, Marko ; Lelas, Damir ; Majumder, Devdatta ; Puljak, Ivica ; Roguljić, Matej ; Starodumov, Andrey ; Šuša, Tatjana ; Šćulac, Toni ; ... ; Vetens, Wren
CMS Collaboration
engleski
Measurements of production cross sections of polarized same-sign W boson pairs in association with two jets in proton-proton collisions at s√= 13 TeV
The first measurements of production cross sections of polarized same-sign W±W± boson pairs in proton-proton collisions are reported. The measurements are based on a data sample collected with the CMS detector at the LHC at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb−1. Events are selected by requiring exactly two same-sign leptons, electrons or muons, moderate missing transverse momentum, and two jets with a large rapidity separation and a large dijet mass to enhance the contribution of same-sign W±W± scattering events. An observed (expected) 95% confidence level upper limit of 1.17 (0.88) fb is set on the production cross section for longitudinally polarized same-sign W±W± boson pairs. The electroweak production of same-sign W±W± boson pairs with at least one of the W bosons longitudinally polarized is measured with an observed (expected) significance of 2.3 (3.1) standard deviations.
CMS ; Diboson ; Electroweak ; Polarized ; Longitudinal
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Podaci o izdanju
812
2021.
136018
27
objavljeno
0370-2693
1873-2445
10.1016/j.physletb.2020.136018