Quenching of axial-vector coupling constant in beta-decay and pion-nucleus optical potential - INSPIRE

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Quenching of axial-vector coupling constant in beta-decay and pion-nucleus optical potential

Mannque Rho
(
- SUNY, Stony Brook
)

1974

11 pages

Published in:

Nucl.Phys.A 231 (1974) 493-503

Published: 1974

DOI:

10.1016/0375-9474(74)90512-0

reference search190 citations

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Abstract: (Elsevier)

A very simple description of the quenching in nuclear matter of the axial-vector coupling constant in β-decay is given in terms of the model of Barshay, Brown and Rho constructed to provide a microscopic picture to the pion-nucleus optical potential for π-mesic atoms. The connection between the two quantities suggests a plausible test of the Lorentz-Lorenz non-linear effect in π-nucleus scattering. By comparing with the sum rule estimate made by M. Ericson, we find that the quenching of g A is consistent with an essentially unsuppressed Lorentz-Lorenz term in the optical potential.

nucleus: leptonic decay
leptonic decay: nucleus
coupling constant: axial-vector
axial-vector: coupling constant
model: optical
pi nucleus: interaction
interaction: pi nucleus
nuclear model
pi: atom
sum rule

References(24)

Figures(0)

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