Jan 10 – 14, 2022
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Search for CP violation in ttH and tH production in multilepton channels with CMS

Jan 10, 2022, 4:33 PM
1m
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Poster Standard Model Precision SM Measurements

Speaker

Clara Ramon Alvarez (Universidad de Oviedo (ES))

Description

A measurement of the CP structure of the Yukawa interaction between the Higgs boson (H) and top quarks in event samples enriched in association of a H with one (tH) or two (tt H) top quarks, is presented. The measurement is based on data collected in proton-proton collisions at √s = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 137 fb−1. The analysis targets events where the H decays via H →WW or H → ττ and the top quark(s) decay either leptonically or hadronically. Separation of CP-even from CP-odd scenarios is achieved by applying machine learning techniques to final states characterized by the presence of at least two leptons.

Primary author

Ulrich Goerlach (Centre National de la Recherche Scientifique (FR))

Presentation materials