Deficit of reactor antineutrinos at distances smaller than 100 m and inverse beta-decay

Abstract

We analyse a change of a deficit of reactor antineutrinos at distances smaller than 100 m by changing the lifetime of the neutron from tau_n = 885.7 s to tau_n = 879.6 s, calculated for the axial coupling constants lambda = - 1.2694 and lambda = - 1.2750, respectively, in order to get a result corresponding the new world average value tau_n = 880.1(1.1) s. We calculate the angular distribution and cross section for the inverse beta-decay, taking into account the contributions of the "weak magnetism" and the neutron recoil to next-to-leading order in the large baryon mass expansion and the radiative corrections of order alpha/π~ 10^(-3), calculated to leading order in the large baryon mass expansion. We obtain an increase of a deficit of reactor antineutrinos in of about 0.734%.

28 pages, 5 figures, The paper is revised. We have fixed the origin of the discrepancy between radiative corrections to the correlation coefficient B, calculated in our paper and by Fukugita and Kubota Ref.[10] and Raha, Myhrer and Kudobera Ref.[11]. In the revised version our results agree with the results obtained in Refs.[10,11]. We ask to apologize us for our hurried critique

References in corpus (4)

• The Reactor Antineutrino Anomaly
• Superallowed 0+ to 0+ nuclear beta decays: A new survey with precision tests of the conserved vector current hypothesis and the standard model
• Neutron Beta-Decay as Laboratory for Test of Standard Model
• Radiative Corrections in Precision Electroweak Physics: a Historical Perspective

Cited by in corpus (11)

• Light sterile neutrinos
• Neutrino Oscillation Probabilities in Matter with Direct and Indirect Unitarity Violation in the Lepton Mixing Matrix
• Spin flip loss in magnetic confinement of ultracold neutrons for neutron lifetime experiments
• Precision Theoretical Analysis of Neutron Radiative Beta Decay to Order "O(α^2/π^2)"
• Lorentz Structure of Vector Part of Matrix Elements of Transitions n <-> p, Caused by Strong Low-Energy Interactions and Hypothesis of Conservation of Charged Vector Current
• Radiative corrections of order O(alpha E_e/m_N) to Sirlin's radiative corrections of order O(alpha/pi) to neutron lifetime
• Precision Theoretical Analysis of Neutron Radiative Beta Decay
• Inverse-square law violation and reactor antineutrino anomaly
• 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
• Neutron Dark Matter Decays
• Neutron beta decay and exact conservation of charged weak hadronic vector current in the Standard Model