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Observation of Higgs in $b\bar{b}$ channel from ATLAS and CMS

Measurements of Higgs boson decays to fermions are important to understand the mass generation of fermions. In the Standard Model, the $H\rightarrow b\bar{b}$ decay is expected to account for almost 60\% of the Higgs branching fraction, but experimentally it is difficult to observe because of overwh...

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Detalles Bibliográficos
Autor principal: Vittori, Camilla
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2669538
Descripción
Sumario:Measurements of Higgs boson decays to fermions are important to understand the mass generation of fermions. In the Standard Model, the $H\rightarrow b\bar{b}$ decay is expected to account for almost 60\% of the Higgs branching fraction, but experimentally it is difficult to observe because of overwhelming backgrounds from Standard Model processes. For this reason, the search for the $H\rightarrow b\bar{b}$ decay is performed exploiting the more distinct signature of Higgs boson production in association with a leptonically decaying vector boson (V). This paper describes the search for the VH($\rightarrow b\bar{b}$) process using pp collision data taken at 13 TeV, and presents also the results from the combination with the search for $H\rightarrow b\bar{b}$ using other production processes and center-of-mass energies, leading to the observation of the $H\rightarrow b\bar{b}$ decay.