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Neutron beta decay in effective field theory

S. Ando·H. W. Fearing·V. Gudkov·K. Kubodera·F. Myhrer·S. Nakamura·T. Sato
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Abstract

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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S. Ando, H. W. Fearing, V. Gudkov, K. Kubodera, F. Myhrer, S. Nakamura, T. Sato. 2004-06-03. Neutron beta decay in effective field theory. https://doi.org/10.1016/j.physletb.2004.06.037

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