Measurement of simplified template cross sections of the Higgs boson produced in association with or bosons in the →⁢ ¯ decay channel in proton-proton collisions at √ =13  TeV

Differential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (, ) and decaying to a pair of quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of the a...

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Detalhes bibliográficos
Autores: Tumasyan, Armen, Silveira, Gustavo Gil da, Bernardes, César Augusto, CMS Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:Brasil
Recursos:Universidade Federal do Rio Grande do Sul (UFRGS)
Repositorio:Repositório Institucional da UFRGS
Idioma:inglés
OAI Identifier:oai:www.lume.ufrgs.br:10183/284135
Acesso em linha:http://hdl.handle.net/10183/284135
Access Level:acceso abierto
Palavra-chave:Aceleradores de partículas
Colisões proton-proton
Bosons de higgs
Descrição
Resumo:Differential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (, ) and decaying to a pair of quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of the and bosons, resulting in final states with 0, 1, or 2 electrons or muons. The Higgs boson candidates are either reconstructed from pairs of resolved -tagged jets, or from single large-radius jets containing the particles arising from two quarks. Proton-proton collision data at √ =13  TeV, collected by the CMS experiment in 2016–2018 and corresponding to a total integrated luminosity of 138  fb−1, are analyzed. The inclusive signal strength, defined as the product of the observed production cross section and branching fraction relative to the standard model expectation, combining all analysis categories, is found to be =1.1⁢5+0.22 −0.20. This corresponds to an observed (expected) significance of 6.3 (5.6) standard deviations.