Precision Theoretical Analysis of Neutron Radiative Beta Decay

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).

arXiv comment15 pages, 1 figure

References in corpus (8)

• Neutron Beta-Decay as Laboratory for Test of Standard Model
• Radiative neutron beta-decay in effective field theory
• Precision Measurement of the Radiative $\mathrm{B}$ Decay of the Free Neutron
• A T-odd Momentum Correlation in Radiative β-Decay
• Radiative Beta Decay for Studies of CP Violation
• Deficit of reactor antineutrinos at distances smaller than 100 m and inverse beta-decay
• The Bound-State Beta Decay of the Neutron Revisited
• Proton Recoil Energy and Angular Distribution of Neutron Radiative Beta Decay

Cited by in corpus (6)

• Indications for a Nonzero Lepton Asymmetry from Extremely Metal-Poor Galaxies
• Tests of the Standard Model in Neutron Beta Decay with Polarized Neutron and Electron and Unpolarized Proton
• Precision Theoretical Analysis of Neutron Radiative Beta Decay to Order "O(α^2/π^2)"
• Radiative corrections of order O(alpha E_e/m_N) to Sirlin's radiative corrections of order O(alpha/pi) to neutron lifetime
• Theoretical description of the neutron beta decay in the standard model at the level of 10^{-5}
• Gauge Properties of Hadronic Structure of Nucleon in Neutron Radiative Beta Decay to Order O(alpha/pi) in Standard V - A Effective Theory with QED and Linear Sigma Model of Strong Low--Energy Interactions