Zobrazeno 1 - 10
of 292
pro vyhledávání: '"Troitskaya, N. A."'
Publikováno v:
Phys. Rev. D 103, 113007 (2021)
We investigate the contributions of the hadronic structure of the neutron to radiative $O(\alpha E_e/m_N)$ corrections (or the inner $O(\alpha E_e/m_N)$ RC) to the neutron beta decay, where $\alpha$, $E_e$ and $m_N$ are the fine-structure constant, t
Externí odkaz:
http://arxiv.org/abs/2105.06952
Publikováno v:
Phys. Rev. D 104, 033006 (2021)
In the framework of the Standard Model (SM) a theoretical description of the neutron beta decay is given at the level of 10^{-5}. The neutron lifetime and correlation coefficients of the neutron beta decay for a polarized neutron, a polarized electro
Externí odkaz:
http://arxiv.org/abs/2104.11080
Publikováno v:
Phys. Rev. C 104, 025503 (2021)
In the standard effective V - A theory of low-energy weak interactions (i.e. in the Standard Model (SM)) we analyze the structure of the correlation coefficients S(E_e) and U(E_e), where E_e is the electron energy. These correlation coefficients were
Externí odkaz:
http://arxiv.org/abs/2102.02021
We analyze the correlation coefficient T(E_e), which was introduced by Ebel and Feldman (Nucl. Phys. 4, 213 (1957)). The correlation coefficient T(E_e) is induced by the correlations of the neutron spin with the antineutrino 3-momentum and the electr
Externí odkaz:
http://arxiv.org/abs/2101.01014
We calculate the contributions of weak magnetism and proton recoil of order O(E^2_e/m^2_N)~10^{-5}, i.e. to next-to-next-to-leading order in the large nucleon mass expansion, to the neutron lifetime and correlation coefficients of the neutron beta de
Externí odkaz:
http://arxiv.org/abs/2010.14336
We analyze the contributions of the one-pion-pole (OPP) exchange, caused by strong low-energy interactions, and the pseudoscalar interaction beyond the Standard Model (BSM) to the correlation coefficients of the neutron beta-decays for polarized neut
Externí odkaz:
http://arxiv.org/abs/1905.04147
We calculate the radiative corrections of order O(alpha E_e/m_N) as next-to-leading order corrections in the large nucleon mass expansion to Sirlin's radiative corrections of order O(alpha/pi) to the neutron lifetime. The calculation is carried out w
Externí odkaz:
http://arxiv.org/abs/1905.01178
Publikováno v:
Phys. Rev. D 99, 053004 (2019)
We calculate the correlation coefficients of the electron-energy and electron-antineutrino angular distribution of the neutron beta decay with polarized electron and unpolarised neutron and proton. The calculation is carried out within the Standard M
Externí odkaz:
http://arxiv.org/abs/1811.04853
As we have pointed out in (arXiv:1806.10107 [hep-ph]), the existence of neutron dark matter decay modes "n -> chi + anything", where "chi" is a dark matter fermion, for the solution of the neutron lifetime problem changes priorities and demands to de
Externí odkaz:
http://arxiv.org/abs/1808.09805
We discuss an investigation of the dark matter decay modes of the neutron, proposed by Fornal and Grinstein (Phys. Rev. Lett. 120 191801 (2018)) and Ivanov et al. ( arXiv:1806.10107 [hep-ph]) for solution of the neutron lifetime anomaly problem, thro
Externí odkaz:
http://arxiv.org/abs/1807.04604