Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions at √s = 13 TeV

The CMS Collaboration

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1 Citation (Scopus)

Abstract

The first measurement of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons is presented. The measurement is based on data collected in proton-proton collisions at s = 13 TeV by the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. The analysis uses the angular correlation between the decay planes of τ leptons produced in Higgs boson decays. The effective mixing angle between CP-even and CP-odd τ Yukawa couplings is found to be −1 ± 19°, compared to an expected value of 0 ± 21° at the 68.3% confidence level. The data disfavour the pure CP-odd scenario at 3.0 standard deviations. The results are compatible with predictions for the standard model Higgs boson. [Figure not available: see fulltext.]

Original languageEnglish
Article number12
JournalJournal of High Energy Physics
Volume2022
Issue number6
DOIs
Publication statusPublished - 2022 Jun

Keywords

  • Hadron-Hadron Scattering
  • Higgs Physics
  • Tau Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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