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|Title:||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|
|Citation:||Mousa, Jehad & Tumasyan, A. & Adam, W. & Ambrogi, F. & Bergauer, T. & Dragicevic, M. & Erö, J. & Valle, A. & Frühwirth, R. & Jeitler, M. & Krammer, N. & Lechner, Luzian & Liko, D. & Madlener, T. & Mikulec, I. & Pitters, F.M. & Rad, Nav & Schieck, J. & Xie, Songyou & Vetens, W.. (2020). Measurements of production cross sections of WZ and same-sign WW boson pairs in association with two jets in proton-proton collisions at s = 13 TeV. Physics Letters B. 809. 135710. 10.1016/j.physletb.2020.135710.|
|Abstract:||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.|
|Appears in Collections:||Department of Physics|
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