Johan Bijnens
Professor, Deputy Head of Division
Hadronic light-by-light contribution to the muon g - 2
Author
Summary, in English
We present a calculation of the hadronic light-by-light contributions to the muon g-2 in the 1/Nc expansion. We have used an extended Nambu-Jona-Lansinio model and introduced an explicit cutoff for the high energy region. We then have critically studied the relative size of the high energy contributions. Although we find them large, we can give an estimate of the light-by-light contribution to aμ which is around 1×10-10. This is smaller than previous estimates and the expected experimental uncertainty at the forthcoming Brookhaven National Laboratory experiment.
Publishing year
1995-08-21
Language
English
Pages
1447-1450
Publication/Series
Physical Review Letters
Volume
75
Issue
8
Document type
Journal article
Publisher
American Physical Society
Topic
- Subatomic Physics
Status
Published
ISBN/ISSN/Other
- ISSN: 0031-9007