Journal article
Lepton-flavor-violating tau decays from triality
I Bigaran, XG He, MA Schmidt, G Valencia, R Volkas
Physical Review D | AMER PHYSICAL SOC | Published : 2023
Abstract
Motivated by flavor symmetry models, we construct theories based on a low-energy limit featuring lepton flavor triality that have the flavor-violating decays τ±→μ±μ±e∓ and τ±→e±e±μ∓ as the main phenomenological signatures of physics beyond the standard model. These decay modes are expected to be probed in the near future with increased sensitivity by the Belle II experiment at the SuperKEKB collider. The simple standard model extensions featured have doubly charged scalars as the mediators of the above decay processes. The phenomenology of these extensions is studied here in detail.
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Grants
Awarded by U.S. Department of Energy
Funding Acknowledgements
This work was supported in part by Australian Research Council Discovery Project DP200101470 and in part by the Australian Research Council Centre of Excellence for Dark Matter Particle Physics (CDM, CE200100008) . It was also supported in part by NSFC (No. 12090064, No. 11975149) and in part by the MOST (Grant No. MOST 106- 2112-M- 002- 003-MY3) . X. G. H. is partially supported by the Fundamental Research Funds for the Central Universities. This manuscript has been co-authored in part by employees of Fermi Research Alliance, LLC under Contract No. DE- AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics.