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

Bijnens, Johan LU orcid ; Pallante, Elisabetta and Prades, Joaquím (1995) In Physical Review Letters 75(8). p.1447-1450
Abstract

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.

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author
; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
75
issue
8
pages
4 pages
publisher
American Physical Society
external identifiers
  • scopus:4243466683
ISSN
0031-9007
DOI
10.1103/PhysRevLett.75.1447
language
English
LU publication?
no
id
e72ca350-c84f-43ed-81b7-1fc3c6a1d6d2
date added to LUP
2019-05-03 09:44:30
date last changed
2021-10-03 04:47:10
@article{e72ca350-c84f-43ed-81b7-1fc3c6a1d6d2,
  abstract     = {{<p>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.</p>}},
  author       = {{Bijnens, Johan and Pallante, Elisabetta and Prades, Joaquím}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{8}},
  pages        = {{1447--1450}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Hadronic light-by-light contribution to the muon g - 2}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.75.1447}},
  doi          = {{10.1103/PhysRevLett.75.1447}},
  volume       = {{75}},
  year         = {{1995}},
}