Consistent Treatment of Axions in the Weak Chiral Lagrangian

Publication type:
Journal article
Metadata:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000686914800006&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1103/PhysRevLett.127.081803
eISSN
1079-7114
Externe Identifier
  • Clarivate Analytics Document Solution ID: UD0NT
  • PubMed Identifier: 34477407
ISSN
0031-9007
Ausgabe der Veröffentlichung
8
Zeitschrift
PHYSICAL REVIEW LETTERS
Artikelnummer
ARTN 081803
Datum der Veröffentlichung
2021
Status
Published
Titel
Consistent Treatment of Axions in the Weak Chiral Lagrangian
Sub types
  • Article
Ausgabe der Zeitschrift
127

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
DOI
10.1103/physrevlett.127.081803
eISSN
1079-7114
ISSN
0031-9007
Ausgabe der Veröffentlichung
8
Zeitschrift
Physical Review Letters
Sprache
en
Artikelnummer
081803
Online publication date
2021
Status
Published online
Herausgeber
American Physical Society (APS)
Herausgeber URL
http://dx.doi.org/10.1103/physrevlett.127.081803
Datum der Datenerfassung
2021
Titel
Consistent Treatment of Axions in the Weak Chiral Lagrangian
Ausgabe der Zeitschrift
127

Data source: Crossref

Abstract
We present a consistent implementation of weak decays involving an axion or axionlike particle in the context of an effective chiral Lagrangian. We argue that previous treatments of such processes have used an incorrect representation of the flavor-changing quark currents in the chiral theory. As an application, we derive model-independent results for the decays K^{-}→π^{-}a and π^{-}→e^{-}ν[over ¯]_{e}a at leading order in the chiral expansion and for arbitrary axion couplings and mass. In particular, we find that the K^{-}→π^{-}a branching ratio is almost 40 times larger than previously estimated.
Addresses
  • Institute for Particle Physics Phenomenology, Department of Physics, Durham University, Durham DH1 3LE, United Kingdom.
Autoren
DOI
10.1103/physrevlett.127.081803
eISSN
1079-7114
Externe Identifier
  • PubMed Identifier: 34477407
Funding acknowledgements
  • Science and Technology Facilities Council: ST/T001011/1
  • Deutsche Forschungsgemeinschaft:
  • Pauli Center:
  • German Excellence Strategy: 39083149
  • Instituto Nazionale di Fisica Nucleare:
  • Universität Zürich:
Open access
false
ISSN
0031-9007
Ausgabe der Veröffentlichung
8
Zeitschrift
Physical review letters
Sprache
eng
Medium
Print
Paginierung
081803
Datum der Veröffentlichung
2021
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2021
Titel
Consistent Treatment of Axions in the Weak Chiral Lagrangian.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
127

Data source: Europe PubMed Central

Abstract
We present a consistent implementation of weak decays involving an axion or axionlike particle in the context of an effective chiral Lagrangian. We argue that previous treatments of such processes have used an incorrect representation of the flavor-changing quark currents in the chiral theory. As an application, we derive model-independent results for the decays K^{-}→π^{-}a and π^{-}→e^{-}ν[over ¯]_{e}a at leading order in the chiral expansion and for arbitrary axion couplings and mass. In particular, we find that the K^{-}→π^{-}a branching ratio is almost 40 times larger than previously estimated.
Date of acceptance
2021
Autoren
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/34477407
DOI
10.1103/PhysRevLett.127.081803
eISSN
1079-7114
Ausgabe der Veröffentlichung
8
Zeitschrift
Phys Rev Lett
Sprache
eng
Country
United States
Paginierung
081803
Datum der Veröffentlichung
2021
Status
Published
Titel
Consistent Treatment of Axions in the Weak Chiral Lagrangian.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
127

Data source: PubMed

Beziehungen:
Property of
Has preprint

Tools