Nuclear Matrix Elements of Axial-Charge Exchange Currents Derived in Heavy-Fermion Chiral Perturbation Theory

Preprint

13 April 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/9404015

Abstract

We calculate shell-model matrix elements of the axial-charge exchange current operators that have been obtained up to the next-to-leading order from heavy-fermion chiral perturbation theory. It is found that loop corrections to the soft one-pion-exchange contribution are small (around 10 \%) and have no significant dependence on the nuclear mass number or on the valence-nucleon orbits. These results render further support to the chiral-filtering conjecture.

Keywords

CHARGE EXCHANGE CURRENTS
AXIAL CHARGE EXCHANGE
PERTURBATION THEORY
EXCHANGE CURRENT
MATRIX ELEMENTS
FILTERING
FERMION
CHIRAL

All Related Versions

Version 1, 1994-04-13, ArXiv
Published version: Nuclear Physics A, 579 (3-4), 381.

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