Radiative Neutron β-Decay in Effective Field Theory

Authors

Susan Gardner, University of Kentucky
Véronique Bernard, Université Louis Pasteur
Chi Zhang, University of Nebraska - LincolnFollow

Date of this Version

7-2005

Citation

Journal of Research of the National Institute of Standards and Technology (July-August 2005) 110(4): 411-414.

Comments

U.S. Government author.

Abstract

We consider radiative β-decay of the neutron in heavy baryon chiral perturbation theory. Nucleon-structure effects not encoded in the weak coupling constants g_A and g_V are determined at next-to-leading order in the chiral expansion, and enter at the O(0.5%)-level, making a sensitive test of the Dirac structure of the weak currents possible.