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Associated production of $H(b\bar b, c \bar c)$ with a $W$ or a $Z$ Boson in ATLAS

Results are presented from the ATLAS search for Standard Model Higgs bosons decaying to a $b\bar b$ or $c \bar c$ pair, produced in association with $W$ or $Z$ bosons. The analyzed data correspond to 36.1 fb$^{-1}$ of 13 TeV proton-proton collision data collected in Run 2 of the Large Hadron Collide...

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Detalles Bibliográficos
Autor principal: Nielsen, Jason
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:http://cds.cern.ch/record/2309810
Descripción
Sumario:Results are presented from the ATLAS search for Standard Model Higgs bosons decaying to a $b\bar b$ or $c \bar c$ pair, produced in association with $W$ or $Z$ bosons. The analyzed data correspond to 36.1 fb$^{-1}$ of 13 TeV proton-proton collision data collected in Run 2 of the Large Hadron Collider. The combination of Run 1 and Run 2 data in the $b\bar b$ channel yields a ratio of the measured production rate to the SM prediction equal to $0.90 \pm 0.18 \text{(stat.)} ^{+0.21}_{-0.19} \text{(syst.)}$. The observed significance of $3.6\sigma$ provides evidence for the direct $Hbb$ Yukawa coupling. A similar search for $c \bar c$ decays results in an upper limit on the production cross section times branching ratio.