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Published March 2003 | Published
Journal Article Open

Radiative corrections to low-energy neutrino reactions


We show that the radiative corrections to charged current (CC) nuclear reactions with an electron (positron) in the final state are described by a universal function. The consistency of our treatment of the radiative corrections with the procedure used to extract the value of the axial coupling constant g(A) is discussed. To illustrate we apply our results to (anti) neutrino deuterium disintegration and to pp fusion in the sun. The limit of vanishing electron mass is considered, and a simple formula sufficiently accurate for E(obs)greater than or similar to 1 MeV is obtained. The size of the nuclear structure-dependent effects is also discussed. Finally, we consider CC transitions with an electron (positron) in the initial state and discuss some applications to electron capture reactions.

Additional Information

© 2003 The American Physical Society. Received 21 November 2002; published 24 March 2003. This work was supported in part by the NSF Grant No. PHY-0071856 and by the U.S. Department of Energy Grants Nos. DE-FG03-88ER40397 and DE-FG02-00ER4146.

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