Precision Theoretical Analysis of Neutron Radiative Beta Decay
High Energy Physics - Phenomenology
2017-03-01 v1 High Energy Physics - Experiment
Nuclear Experiment
Abstract
In the Standard Model of electroweak interactions and in the tree--approximation we calculate the rate and branching ratio of the neutron radiative beta decay with one-real photon emission by taking into account the contributions of the weak magnetism and proton recoil to order 1/m_p of the large proton mass m_p expansion. We find that the obtained contributions of the weak magnetism and proton recoil increase the rate and branching ratio of the neutron radiative beta decay by about 0.70%. This is large compared with the contribution of the weak magnetism and proton recoil of about 0.16% to the rate of the neutron beta decay, calculated in Phys. Rev. D88, 073002 (2013).
Keywords
Cite
@article{arxiv.1701.04613,
title = {Precision Theoretical Analysis of Neutron Radiative Beta Decay},
author = {A. N. Ivanov and R. Höllwieser and N. I. Troitskaya and M. Wellenzohn and Ya. A. Berdnikov},
journal= {arXiv preprint arXiv:1701.04613},
year = {2017}
}
Comments
15 pages, 1 figure