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

Tumasyan, A ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1007/JHEP06(2022)012
  3. Publisher: Springer Science and Business Media Deutschland GmbH , 2022
  4. Abstract:
  5. 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.] © 2022, The Author(s)
  6. Keywords:
  7. Hadron-Hadron Scattering ; Higgs Physics ; Tau Physics
  8. Source: Journal of High Energy Physics ; Volume 2022, Issue 6 , 2022 ; 10298479 (ISSN)
  9. URL: https://cds.cern.ch/record/2725571?ln=en