Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of aμ and ae

Publication type:
Journal article
Metadata:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000535862200005&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1103/PhysRevLett.124.211803
eISSN
1079-7114
Externe Identifier
  • Clarivate Analytics Document Solution ID: LR7GO
  • PubMed Identifier: 32530685
ISSN
0031-9007
Ausgabe der Veröffentlichung
21
Zeitschrift
PHYSICAL REVIEW LETTERS
Artikelnummer
ARTN 211803
Datum der Veröffentlichung
2020
Status
Published
Titel
Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of <i>a</i><sub>μ</sub> and <i>a<sub>e</sub></i>
Sub types
  • Article
Ausgabe der Zeitschrift
124

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
DOI
10.1103/physrevlett.124.211803
eISSN
1079-7114
ISSN
0031-9007
Ausgabe der Veröffentlichung
21
Zeitschrift
Physical Review Letters
Sprache
en
Artikelnummer
211803
Online publication date
2020
Status
Published online
Herausgeber
American Physical Society (APS)
Herausgeber URL
http://dx.doi.org/10.1103/physrevlett.124.211803
Datum der Datenerfassung
2020
Titel
Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>a</mml:mi><mml:mi>μ</mml:mi></mml:msub></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>a</mml:mi><mml:mi>e</mml:mi></mml:msub></mml:math>
Ausgabe der Zeitschrift
124

Data source: Crossref

Abstract
Axionlike particles (ALPs) with lepton-flavor-violating couplings can be probed in exotic muon and tau decays. The sensitivity of different experiments depends strongly on the ALP mass and its couplings to leptons and photons. For ALPs that can be resonantly produced, the sensitivity of three-body decays such as μ→3e and τ→3μ exceeds by many orders of magnitude that of radiative decays like μ→eγ and τ→μγ. Searches for these two types of processes are therefore highly complementary. We discuss experimental constraints on ALPs with a single dominant lepton-flavor-violating coupling. Allowing for one or more such couplings offers qualitatively new ways to explain the anomalies related to the magnetic moments of the muon or the electron. The explanation of both anomalies requires lepton-flavor-nonuniversal or lepton-flavor-violating ALP couplings.
Addresses
  • Institute for Particle Physics Phenomenology, Department of Physics, Durham University, Durham DH1 3LE, United Kingdom.
Autoren
DOI
10.1103/physrevlett.124.211803
eISSN
1079-7114
Externe Identifier
  • PubMed Identifier: 32530685
Funding acknowledgements
  • Cluster of Excellence Precision Physics, Fundamental Interactions, and Structure of Matter:
  • Bundesministerium für Bildung und Forschung: 05H18UMKB1
  • German Excellence Strategy: 39083149
  • Deutsche Forschungsgemeinschaft: EXC 2118/1
  • Science and Technology Facilities Council: ST/P001246/1
Open access
false
ISSN
0031-9007
Ausgabe der Veröffentlichung
21
Zeitschrift
Physical review letters
Sprache
eng
Medium
Print
Paginierung
211803
Datum der Veröffentlichung
2020
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2020
Titel
Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of a_{μ} and a_{e}.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
124

Data source: Europe PubMed Central

Abstract
Axionlike particles (ALPs) with lepton-flavor-violating couplings can be probed in exotic muon and tau decays. The sensitivity of different experiments depends strongly on the ALP mass and its couplings to leptons and photons. For ALPs that can be resonantly produced, the sensitivity of three-body decays such as μ→3e and τ→3μ exceeds by many orders of magnitude that of radiative decays like μ→eγ and τ→μγ. Searches for these two types of processes are therefore highly complementary. We discuss experimental constraints on ALPs with a single dominant lepton-flavor-violating coupling. Allowing for one or more such couplings offers qualitatively new ways to explain the anomalies related to the magnetic moments of the muon or the electron. The explanation of both anomalies requires lepton-flavor-nonuniversal or lepton-flavor-violating ALP couplings.
Date of acceptance
2020
Autoren
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/32530685
DOI
10.1103/PhysRevLett.124.211803
eISSN
1079-7114
Ausgabe der Veröffentlichung
21
Zeitschrift
Phys Rev Lett
Sprache
eng
Country
United States
Paginierung
211803
Datum der Veröffentlichung
2020
Status
Published
Titel
Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of a_{μ} and a_{e}.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
124

Data source: PubMed

Autoren
DOI
10.1103/physrevlett.124.211803
eISSN
1079-7114
ISSN
0031-9007
Ausgabe der Veröffentlichung
21
Zeitschrift
Physical Review Letters
Sprache
en
Artikelnummer
211803
Online publication date
2020
Status
Published online
Herausgeber
American Physical Society (APS)
Datum der Datenerfassung
2022
Titel
Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of aμ and ae
Ausgabe der Zeitschrift
124

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