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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

Hadronic light-by-light contribution to the muon g - 2

Author

  • Johan Bijnens
  • Elisabetta Pallante
  • Joaquím Prades

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