Sirunyan, AM and Tumasyan, A and Adam, W and Bergauer, T and Choudhury, S and Komaragiri, JR and Kumar, D and Panwar, L and Tiwari, PC (2021) 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. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics .
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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. © 2020 The Author(s)
| Item Type: | Journal Article |
|---|---|
| Publication: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Publisher: | Elsevier B.V. |
| Additional Information: | Copyright to this article belongs to Elsevier B.V. |
| Keywords: | CMSDibosonElectroweakPolarizedLongitudinal |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 09 Feb 2021 06:08 |
| Last Modified: | 09 Feb 2021 06:08 |
| URI: | http://eprints.iisc.ac.in/id/eprint/67900 |
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