Abstract
We calculate the correlation coefficients of the electron–energy and electron–antineutrino angular distribution of the neutron -decay with polarized electron and unpolarised neutron and proton. The calculation is carried out within the standard model (SM) with the contributions, caused by the weak magnetism, proton recoil and radiative corrections of order of , Wilkinson’s corrections of order [Wilkinson, Nucl. Phys. A377, 474 (1982) and Ivanov et al., Phys. Rev. C 95, 055502 (2017)] and the contributions of interactions beyond the SM. The obtained results can be used for the analysis of experimental data on searches of interactions beyond the SM at the level of [Abele, Hyperfine Interact. 237, 155 (2016)]. The contributions of –odd correlations are calculated and found at the level of in agreement with the results obtained by Gardner and Plaster [Phys. Rev. C 87, 065504 (2013)] and Ivanov et al. [Phys. Rev. C 98, 035503 (2018)].
- Received 12 November 2018
DOI:https://doi.org/10.1103/PhysRevD.99.053004
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Published by the American Physical Society