Measurement of boosted Higgs bosons produced via vector boson fusion or gluon fusion in the H →bb¯ decay mode using LHC proton-proton collision data at s = 13 TeV

A measurement is performed of Higgs bosons produced with high transverse momentum (pT) via vector boson or gluon fusion in proton-proton collisions. The result is based on a data set with a center-of-mass energy of 13 TeV collected in 2016-2018 with the CMS detector at the LHC and corresponds to an...

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Detalles Bibliográficos
Autores: Hayrapetyan, A., Tumasyan, A., Bhowmik, Sandeep, Blanco Fernández, Sergio, Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856, 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, Martínez Rivero, Celso, Martínez Ruiz del Árbol, Pablo|||0000-0002-7737-5121, Matorras Cuevas, Pablo|||0000-0001-7481-7273, Matorras Weinig, Francisco|||0000-0003-4295-5668, 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:2024
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/36082
Acceso en línea:https://hdl.handle.net/10902/36082
Access Level:acceso abierto
Palabra clave:Hadron-Hadron Scattering
Higgs Physics
Descripción
Sumario:A measurement is performed of Higgs bosons produced with high transverse momentum (pT) via vector boson or gluon fusion in proton-proton collisions. The result is based on a data set with a center-of-mass energy of 13 TeV collected in 2016-2018 with the CMS detector at the LHC and corresponds to an integrated luminosity of 138 fb-1. The decay of a high-pT Higgs boson to a boosted bottom quark-antiquark pair is selected using largeradius jets and employing jet substructure and heavy-favor taggers based on machine learning techniques. Independent regions targeting the vector boson and gluon fusion mechanisms are defned based on the topology of two quark-initiated jets with large pseudorapidity separation. The signal strengths for both processes are extracted simultaneously by performing a maximum likelihood ft to data in the large-radius jet mass distribution. The observed signal strengths relative to the standard model expectation are 4.9 +1.9 -1.6 and 1.6 +1.7 -1.5 for the vector boson and gluon fusion mechanisms, respectively. A diferential cross section measurement is also reported in the simplifed template cross section framework.

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