Flavor-changing Lorentz and CPT violation in muonic atoms

Fuente: arXiv
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Main Authors: Kostelecky, Alan, McNulty, W. P., Passemar, E., Sherrill, N.
Format: Preprint
Published: 2025
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author Kostelecky, Alan
McNulty, W. P.
Passemar, E.
Sherrill, N.
author_facet Kostelecky, Alan
McNulty, W. P.
Passemar, E.
Sherrill, N.
contents Flavor-changing signatures of Lorentz and CPT violation involving muon-electron conversions in muonic atoms are studied using effective field theory. Constraints on coefficients for Lorentz violation at parts in $10^{-12}$ GeV$^{-1}$ for flavor-changing electromagnetic muon decays and parts in $10^{-13}$ GeV$^{-2}$ for flavor-changing 4-point quark-lepton interactions are extracted using existing data from the SINDRUM II experiment at the Paul Scherrer Institute. Estimates are provided for sensitivities attainable in the forthcoming experiments Mu2e at Fermilab and COMET at the Japan Proton Accelerator Complex.
format Preprint
id arxiv_https___arxiv_org_abs_2501_05986
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Flavor-changing Lorentz and CPT violation in muonic atoms
Kostelecky, Alan
McNulty, W. P.
Passemar, E.
Sherrill, N.
High Energy Physics - Phenomenology
Flavor-changing signatures of Lorentz and CPT violation involving muon-electron conversions in muonic atoms are studied using effective field theory. Constraints on coefficients for Lorentz violation at parts in $10^{-12}$ GeV$^{-1}$ for flavor-changing electromagnetic muon decays and parts in $10^{-13}$ GeV$^{-2}$ for flavor-changing 4-point quark-lepton interactions are extracted using existing data from the SINDRUM II experiment at the Paul Scherrer Institute. Estimates are provided for sensitivities attainable in the forthcoming experiments Mu2e at Fermilab and COMET at the Japan Proton Accelerator Complex.
title Flavor-changing Lorentz and CPT violation in muonic atoms
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2501.05986