SciPost Submission Page
Search for lepton flavour violating decays involving tau leptons in the final state at CMS
by Luca Guzzi
Submission summary
| Authors (as registered SciPost users): | Luca Guzzi |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202406_00011v1 (pdf) |
| Date accepted: | 2024-12-19 |
| Date submitted: | 2024-06-05 17:28 |
| Submitted by: | Guzzi, Luca |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 17th International Workshop on Tau Lepton Physics (TAU2023) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
In the Standard Model (SM) lepton flavour numbers are approximately conserved at energies accessible to current experiments, where lepton flavour violation is extremely suppressed. The observation of neutrino oscillations, however, proves that neutrinos are massive particles and allows for additional Lepton Flavour Violating (LFV) processes also at low energies. Nevertheless, these processes are predicted with very low branching ratios and are sensitive to new physics effects, which could manifest as an enhancement in the decay probability. Similarly, Lepton Flavour Universality Violating (LFUV) observables allows for the test of the SM and the study of beyond the SM theories. The latest CMS results from the Higgs, B-physics and exotica groups are presented on the search for LFV and LFUV with tau leptons in the final state. The results are based on data collected in proton-proton collisions at the centre-of-mass energy of 13 TeV.
Current status:
Editorial decision:
For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
Reports on this Submission
Report #1 by Swagato Banerjee (Referee 1) on 2024-11-28 (Invited Report)
Report
Searches for Lepton Flavor Violating (LFV) and Lepton Flavor
Universality (LFU) violating decays involving tau leptons in the final state,
made by the CMS experiment with proton-proton collision data collected at the centre-of-mass energy of 13 TeV are presented. The analyses covered are tau decaying to 3 muons, heavy resonances and quantum black holes decaying to electron-muon, electron-tau and muon-tau final states, Higgs boson decaying to electron-tau and muon-tau final states, and semi-leptonic decays of Bc+ to J/psi tau nu over Bc+ to J/psi muon nu. The results obtained from these searches are promising and point towards exciting possibilities for future research during the ongoing data collection and upcoming high-luminosity era.
Recommendation
Publish (surpasses expectations and criteria for this Journal; among top 10%)