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Measurement of the $\textit{CP}$ structure of the Higgs-tau Yukawa coupling

by Vinaya Krishnan MB

This Submission thread is now published as SciPost Phys. Proc. 8, 008 (2022)

Submission summary

As Contributors: Vinaya Krishnan Mb
Arxiv Link: (pdf)
Date accepted: 2022-04-06
Date submitted: 2022-03-17 01:30
Submitted by: Mb, Vinaya Krishnan
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
  • High-Energy Physics - Experiment
Approach: Experimental


The CMS experiment at the LHC has performed the first measurement of the CP structure of the Yukawa coupling between the Higgs boson and tau leptons. The measurement is based on data collected in proton-proton collisions at $\sqrt{s} = 13$ TeV during 2016-18, corresponding to an integrated luminosity of $137\text{ fb}^{-1}$. The analysis utilizes the angular correlation between the decay planes of tau leptons produced in Higgs boson decays, where dedicated analysis techniques are used to optimise the reconstruction of tau decay planes. The measured value of the CP mixing angle is $4\pm17^{\circ}$, at $68\%$ confidence level. The pure $\textit{CP-}$odd hypothesis is excluded by $3.2$ standard deviations. The analysis strategies and the results of the measurement are presented.

Published as SciPost Phys. Proc. 8, 008 (2022)

List of changes

- Abstract , L1: at LHC -> at the LHC.
- Abstract , L6: of CP -> of the CP.
- Author field: behalf of CMS collaboration -> on behalf of the CMS Collaboration.
- L32: ensure whether -> ensure that.
- L35: interaction -> interactions.
- L36: CP odd -> CP-odd.
- L43: of Higgs -> of a Higgs; remove the comma at the end.
- L44: deleted the comma after "where".
- L55: of mixing angle from the Phi_CP -> of the mixing angle from Phi_CP.
- L 56: Tau -> The $\tau$.
- L 57: tau -> $\tau$-.
- L59: replace the comma by a colon.
- L60: tau -> the tau.
- L70: other hand -> other.
- L71: neutral -> the neutral.
- L84: 1 prong -> the 1-prong.
- L88: productions -> production.
- L91: is jets -> are jets; fake -> the fake.
- L93: MC -> the MC.
- L95: Using -> Using a.
- a period added at the end of the caption of Fig. 1.
- L110: of the -> of; using -> using the.
- L113: accounted -> accounted.
- Caption of Fig. 3: the 2D -> The 2D.
- L134: Standard Model -> standard model.

Submission & Refereeing History

Published as SciPost Phys. Proc. 8, 008 (2022)

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Resubmission 2203.08191v1 on 17 March 2022

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