Heidelberg 2022 – scientific programme

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T: Fachverband Teilchenphysik

T 90: Higgs Boson: Associated Production 2

T 90.6: Talk

Thursday, March 24, 2022, 17:30–17:45, T-H21

Extraction of the gluon-initiated component of the associated production of the Higgs boson and a vector boson with the CMS experiment — •Alena Dodonova1, Alexander Schmidt1, Xavier Coubez1,2, Luca Mastrolorenzo1, Andrey Pozdnyakov1, Andrzej Novak1, Spandan Mondal1, and Ming-Yan Lee11III. Physikalisches Institut A, RWTH Aachen University, Aachen, Germany — 2Brown University, Providence, USA

Associated Higgs boson production with a Z boson (ZH) contains quark- and gluon-initiated components. The gluon-initiated component (ggZH) could be a good probe for the physics beyond the Standard Model (SM) since the effects of the new physics for the loop-induced processes would be of the same order as the SM process. Due to destructive interference between box and triangle contributions at the leading order, this component is suppressed with respect to the dominant quark-initiated contribution to ZH production.

In this talk, I will present the prospects to measure the upper limit on the ggZH component in the Hbb decay channel using multivariate analysis. The study is performed with the full Run 2 dataset collected with the CMS detector at the LHC at √s=13 TeV.

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