Axial-charge transitions in heavy nuclei and in-medium effective chiral Lagrangians
- 16 December 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (25), 3479-3482
- https://doi.org/10.1103/physrevlett.67.3479
Abstract
It is shown that the recently reported strong enhancement of the axial-charge matrix element in first-forbidden β decay in heavy nuclei (A=205–212) can be simply explained in terms of an effective Lagrangian that incorporates approximate chiral and scale invariances of QCD. We suggest this as an evidence for the scaling property of hadrons in dense medium as predicted by effective chiral Lagrangians that are consistent with the symmetries of QCD.Keywords
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