Journal article
Muon-induced baryon number violation
Physical review. D, Vol.110(7), 075015
10/16/2024
DOI: 10.1103/PhysRevD.110.075015
Abstract
The search for charged-lepton flavor violation in muon capture on nuclei is a powerful probe of heavy new physics. A smoking gun signal for mu -* e conversion is a monochromatic electron with energy almost equal to the muon mass. We show that light new physics can mimic this signature and that it can also lead to electrons above the mu -* e signal peak. A concrete example of such light new physics is mu--nucleon annihilation into a light dark sector, which can produce an energetic e- as well as e+e- by-products. Due to the size of the muon mass, the exotic muon capture process can be kinematically allowed, while the otherwise stringent constraints, e.g., from proton decay, are kinematically forbidden. We also discuss other relevant constraints, including those from the stability of nuclei and muon capture in the interior of neutron stars.
Details
- Title: Subtitle
- Muon-induced baryon number violation
- Creators
- Patrick J. Fox - Fermi National Accelerator LaboratoryMatheus Hostert - Harvard UniversityTony Menzo - University of CincinnatiMaxim Pospelov - University of MinnesotaJure Zupan - University of Cincinnati
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Vol.110(7), 075015
- DOI
- 10.1103/PhysRevD.110.075015
- ISSN
- 2470-0010
- eISSN
- 2470-0029
- Publisher
- Amer Physical Soc
- Number of pages
- 19
- Grant note
- Fermilab DE-SC0011842; DE-SC0007859 / DOE; United States Department of Energy (DOE) Visiting Scholars Award Program of the Universities Research Association OAC-2103889 / National Science Foundation (NSF) DE-AC02-07CHI11359 / Neutrino Theory Network Program de-sc0011784 / Department of Energy (DOE); United States Department of Energy (DOE) PHY-2210452 / National Science Foundation; National Science Foundation (NSF) DE-SC0020250 / U.S. DOE; United States Department of Energy (DOE) DE-SC0011784 / U.S. Department of Energy (DOE); United States Department of Energy (DOE) 920184 / Simons Foundation
- Language
- English
- Date published
- 10/16/2024
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984945916102771
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