A first study is presented of the cross section for the scattering of same-sign W boson pairs via the detection of a τ lepton. The data from proton-proton collisions at the center-of-mass energy of 13 TeV were collected by the CMS detector at the LHC, and correspond to an integrated luminosity of 138 fb−1. Events were selected that contain two jets with large pseudorapidity and large invariant mass, one τ lepton, one light lepton (e or μ), and significant missing transverse momentum. The measured cross section for electroweak same-sign WW scattering is times the standard model prediction. In addition, a search is presented for the indirect effects of processes beyond the standard model via the effective field theory framework, in terms of dimension-6 and dimension-8 operators.

Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., et al. (2025). Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2025(10) [10.1007/JHEP10(2025)219].

Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at TeV

Xiao J.;Brivio F.;Cetorelli F.;De Guio F.;Dinardo M. E.;Gerosa R.;Ghezzi A.;Govoni P.;Guzzi L.;Lucchini M. T.;Malberti M.;Moroni L.;Paganoni M.;Palluotto S.;Perego A.;Pinolini B. S.;Pizzati G.;Ragazzi S.;Tabarelli de Fatis T.;
2025

Abstract

A first study is presented of the cross section for the scattering of same-sign W boson pairs via the detection of a τ lepton. The data from proton-proton collisions at the center-of-mass energy of 13 TeV were collected by the CMS detector at the LHC, and correspond to an integrated luminosity of 138 fb−1. Events were selected that contain two jets with large pseudorapidity and large invariant mass, one τ lepton, one light lepton (e or μ), and significant missing transverse momentum. The measured cross section for electroweak same-sign WW scattering is times the standard model prediction. In addition, a search is presented for the indirect effects of processes beyond the standard model via the effective field theory framework, in terms of dimension-6 and dimension-8 operators.
Articolo in rivista - Articolo scientifico
Hadron-Hadron Scattering; Vector Boson Production;
English
27-ott-2025
2025
2025
10
219
none
Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., et al. (2025). Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2025(10) [10.1007/JHEP10(2025)219].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/593829
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