Abstract
The one-loop QED and electroweak radiative corrections to neutrino-deuteron scattering induced by the neutral current are reexamined, paying a particular attention to the constant term which has never been treated properly in literature. This problem is closely related to the definition of the axial-vector coupling constant $g_{A}$ and requires thorough calculations of the constant terms in the charged current processes, too. We find that the radiative corrections to the neutral current induced reactions amount to 1.7 (1.5) per cent enhancement, if the Higgs boson mass is $m_{H}=1.5 \: m_{Z} (m_{H}=5.0 \: m_{Z})$ This number happens to be close to that given by Kurylov et al., but we argue that this is accidental.
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