Publication: Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions at √s = 13 TeV
Дата
2022
Авторы
Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Matveev, V.
Chadeeva, M.
Oskin, A.
Parygin, P.
Popova, E.
Selivanova, D.
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© 2022, The Author(s).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.]
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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. [et al.] // Journal of High Energy Physics. - 2022. - 2022. - № 6. - 10.1007/JHEP06(2022)012