Neutron beta decay in effective field theory

Details Neutron beta decay in effective field theory Neutron beta decay in effective field theory

2004-02-26

arxiv.org/abs/nucl-th/0402100v2

Phys.Lett. B595 (2004) 250-259

Physics

Nuclear Physics

Nuclear Theory

13 pages, 1 figure; two references added, minor correction

Scientific paper

10.1016/j.physletb.2004.06.037

Radiative corrections to the lifetime and angular correlation coefficients of neutron beta-decay are evaluated in effecitive field theory. We also evaluate the lowest order nucleon recoil corrections, including weak-magnetism. Our results agree with those of the long-range and model-independent part of previous calculations. In an effective theory the model-dependent radiative corrections are replaced by well-defined low-energy constants. The effective field theory allows a systematic evaluation of higher order corrections to our results to the extent that the relevant low-energy constants are known.

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