Abstract
The hadronic light-by-light scattering contribution to muon is examined using low energy effective theories of QCD, the Nambu–Jona-Lasinio model, and hidden local chiral symmetry, as guides. Our result is with an uncertainty of , which includes our best estimate of model dependence. This is within the expected measurement uncertainty of in the forthcoming experiment at Brookhaven National Laboratory. Our result removes one of the main theoretical obstacles in verifying the existence of the weak contribution to the muon .
- Received 29 March 1995
DOI:https://doi.org/10.1103/PhysRevLett.75.790
©1995 American Physical Society