Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at V¯s = 13 TeV

A first study is presented of the cross section for the scattering of same-sign W boson pairs via the detection of a t 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 13...

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Detalles Bibliográficos
Autores: Hayrapetyan, A., Tumasyan, A., Bhowmik, Sandeep, Blanco Fernández, Sergio, Cabrillo Bartolomé, José Ibán, Calderón Tazón, Alicia|||0000-0002-7205-2040, Duarte Campderros, Jorge|||0000-0003-0687-5214, Fernández García, Marcos|||0000-0002-4824-1087, Gómez Gramuglio, Gervasio|||0000-0002-1077-6553, Lasaosa García, Clara, López Ruiz, Rubén, Martínez Rivero, Celso, Martínez Ruiz del Árbol, Pablo|||0000-0002-7737-5121, Matorras Weinig, Francisco|||0000-0003-4295-5668, Matorras Cuevas, Pablo|||0000-0001-7481-7273, Navarrete Ramos, Efrén|||0000-0002-5180-4020, Piedra Gómez, Jonatan|||0000-0002-9157-1700, Scodellaro, Luca|||0000-0002-4974-8330, Vila Álvarez, Iván|||0000-0002-6797-7209, Vizán García, Jesús Manuel|||0000-0002-6823-8854
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/38948
Acceso en línea:https://hdl.handle.net/10902/38948
Access Level:acceso abierto
Palabra clave:Hadron-hadron scattering
Vector boson production
Descripción
Sumario:A first study is presented of the cross section for the scattering of same-sign W boson pairs via the detection of a t 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 t lepton, one light lepton (e or µ), and significant missing transverse momentum. The measured cross section for electroweak same-sign WW scattering is 1.44+0.63 -0.56 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.

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