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; Physics Letters B; Vol. 812
| Parent link: | Physics Letters B Vol. 812.— 2021.— [136018, 27 p.] |
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| מחבר תאגידי: | |
| מחברים אחרים: | , , , , , , , |
| סיכום: | Title screen 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 13TeV, corresponding to an integrated luminosity of 137fb−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) fbis 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. |
| שפה: | אנגלית |
| יצא לאור: |
2021
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| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1016/j.physletb.2020.136018 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664782 |