“School of Particles And Accelerator”
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| Paper IPM / Particles And Accelerator / 17706 |
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| Abstract: | |||||
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This paper employs the $H+b+\text{jets}$ signature in proton-proton collisions to explore the structure of the
$Hb\bar{b}$ couplings.The focus of the analysis lies in the decay of the Higgs boson into a photon pair,
taking into account both reducible and
irreducible backgrounds and a realistic simulation of the detector effects.
To enhance the discrimination between signal and background,
a multivariate analysis is employed to analyse the kinematic variables and optimise the signal-to-background ratio.
The results indicate that the $H+b+\text{jets}$ process can significantly
contribute to the precise measurement of CP-even and CP-odd couplings
between the bottom quark and the Higgs boson at the LHC and FCC-hh.
Finally, a novel asymmetry is introduced for the purpose of probing CP violation within the
$Hb\bar{b}$ coupling, formulated exclusively based on lab-frame momenta.
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