Compact Muon Solenoid
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| CMS-PAS-SMP-20-006 | ||
| Measurements of production cross sections of polarized same-sign W boson pairs in association with two jets in proton-proton collisions at $\sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| July 2020 | ||
| Abstract: The first measurements of production cross sections of polarized same-sign $\mathrm{W}^{\pm}\mathrm{W^{\pm}}$ boson pairs in proton-proton collisions are reported. The measurements are based on a sample of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb$^{-1}$. Events are selected by requiring exactly two leptons, electrons or muons, of the same charge, moderate missing transverse momentum, and two jets with a large rapidity separation and a large dijet mass. An observed (expected) 95% CL upper limit on the production cross section for longitudinally polarized same-sign $\mathrm{W}^{\pm}\mathrm{W^{\pm}}$ boson pairs of 1.17 (0.88) fb is reported, with the helicity eigenstates defined in the $\mathrm{W}^{\pm}\mathrm{W^{\pm}}$ center-of-mass reference frame. The electroweak production of same-sign $\mathrm{W}^{\pm}\mathrm{W^{\pm}}$ 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. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PLB 812 (2020) 136018. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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