We consider radiative β-decay of the neutron in heavy baryon chiral perturbation theory. Nucleon-structure effects not encoded in the weak coupling constants gA and gV are determined at next-to-leading order in the chiral expansion, and enter at the 0(0.5 %)-level, making a sensitive test of the Dirac structure of the weak currents possible.
|Original language||English (US)|
|Number of pages||4|
|Journal||Journal of Research of the National Institute of Standards and Technology|
|State||Published - Jan 1 2005|
- Neutron β-decay
- Radiative corrections
ASJC Scopus subject areas