Compact Muon Solenoid
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| CMS-PAS-SMP-22-008 | ||
| Measurement of W$^{\pm}$W$^{\pm} $ scattering in proton-proton collisions at $ \sqrt{s} =$ 13 TeV in final states with one tau lepton | ||
| CMS Collaboration | ||
| 21 August 2023 | ||
| Abstract: A measurement of the cross section for the scattering of same-sign W bosons is presented. This is the first study of a vector boson scattering process in the decay channel with a tau lepton ($ \tau $). The analysis is performed with proton-proton collision data collected by the CMS detector at the LHC at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb$ ^{-1} $. Events are selected with the requirement of one $ \tau $, one light lepton ($ e $ or $ \mu $), missing transverse momentum, and two jets with large pseudorapidity separation and large dijet invariant mass. The measured electroweak same-sign WW scattering cross section, extracted with the amplitude for the QCD-associated diboson production fixed to the standard model value, is 1.44 $ ^{+0.63}_{-0.56} $ times the standard model prediction. The observed (expected) signal significance is 2.7 (1.9) standard deviations. A measurement of the combined electroweak and QCD-associated same-sign diboson production yields an observed (expected) significance of 2.9 (2.0) standard deviations. | ||
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Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to JHEP. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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