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.]
Keywords
Hadron-Hadron Scattering, Higgs Physics, Tau Physics
DOI Link
Publication Date
2022-01-01
Publication Title
Journal of High Energy Physics
Volume
2022
Issue
6
ISSN
1126-6708
Deposit Date
2026-07-13
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Additional Links
Recommended Citation
The CMS collaboration., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., Dragicevic, M., Escalante Del Valle, A., Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Paulitsch, P., Pitters, F., Schieck, J., Schöfbeck, R., Schwarz, D., Templ, S., Waltenberger, W., Wulz, C., Chekhovsky, V., Litomin, A., Makarenko, V., Darwish, M., De Wolf, E., Janssen, T., Kello, T., Lelek, A., & Rejeb Sfar, H. (2022) 'Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions at √s = 13 TeV', Journal of High Energy Physics, 2022(6). Available at: 10.1007/JHEP06(2022)012