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Searches for Lepton Flavor Violation in Tau Decays at Belle II

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arxiv 2209.11639 v1 pith:SRVJM2ZE submitted 2022-09-23 hep-ex hep-ph

classification hep-exhep-ph
keywords physicssearchesacceleratorbelledecaysflavorleptonviolation
verification ladder T0 review T1 audit T2 compute T3 formal

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Searches for lepton flavor violation in tau decays are unambiguous signatures of new physics. The branching ratios of tau leptons at the level of 10^-10 - 10^-9 can be probed with 50 ab^-1 of electron-positron annihilation data being collected by the Belle II experiment at the world's highest luminosity accelerator, the SuperKEKB, located at the High Energy Accelerator Research Organization, KEK, in Tsukuba, Japan. Searches with such expected sensitivity will either discover new physics or strongly constrain several new physics models.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The flavour of SU(15) composite quarks and leptons

    hep-ph 2026-07 conditional novelty 6.0 of 10

    A hand-imposed hierarchical texture for two flavour spurions fits the SM quark/lepton masses and CKM, and the same spurions make the electron EDM and K0-Kbar0 mixing the strongest probes of the SU(15) preon scale.

  2. Probing a 146 GeV cLFV scalar using the LHC and low-energy experiments

    hep-ph 2026-07 conditional novelty 6.0 of 10

    A 146 GeV scalar explaining the CMS eμ excess prefers Y_eμ ~ 10^{-4.09} and is directly testable by Mu2e, COMET, Mu3e and related cLFV experiments.

  3. Leptonic Flavor from Modular $A_4$: UV Mediators and SMEFT Realizations

    hep-ph 2025-05 conditional novelty 6.0 of 10

    This paper classifies lepton-coupled UV mediators under modular A4 symmetry and derives experimental lower bounds on their masses from lepton flavor observables.

  4. Improved Bounds and Global Fit of Flavor-Violating Charged Lepton Yukawa Couplings post LHC

    hep-ph 2025-05 conditional novelty 4.0 of 10

    Updated constraints show LHC direct searches now dominate the tau-mu and tau-e flavor-violating Higgs couplings, with new-physics scales around 10 to 100 TeV.

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