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16 April 2024

» arxiv » nucl-th/9404015

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Nuclear Matrix Elements of Axial-Charge Exchange Currents Derived in Heavy-Fermion Chiral Perturbation Theory
Tae-Sun Park ; Ian S. Towner ; Kuniharu Kubodera ;
Date:	13 Apr 1994
Journal:	Nucl.Phys. A579 (1994) 381-397
Subject:	nucl-th hep-ph
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.
Source:	arXiv, nucl-th/9404015
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