DMCA
Chiral Symmetry and the Parity-Violating NNπ Yukawa Coupling (2000)
BibTeX
@MISC{A00chiralsymmetry,
author = {Shi-lin Zhu A and S. J. Puglia A and B. R. Holstein C and M. J. Ramsey-musolf A},
title = {Chiral Symmetry and the Parity-Violating NNπ Yukawa Coupling},
year = {2000}
}
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Abstract
We construct the complete SU(2) parity-violating (PV) π,N, ∆ interaction Lagrangian with one derivative, and calculate the chiral corrections to the PV Yukawa NNπ coupling constant hπ through O(1/Λ 3 χ) in the leading order of heavy baryon expansion. We discuss the relationship between the renormalized hπ, the measured value of hπ, and the corresponding quantity calculated microscopically from the Standard Model four-quark PV interaction. The parity-violating (PV) nucleon-nucleon interaction has been a subject of interest in nuclear and particle physics for some time. To date, PV observables generated by this interaction remain the only experimental windows on the ∆S = 0, nonleptonic weak interaction. Since the 1970’s, the PV NN interaction has been studied in a variety of
Keyphrases
chiral symmetry parity-violating nn yukawa coupling nucleon-nucleon interaction pv yukawa nn measured value experimental window pv nn interaction complete su heavy baryon expansion chiral correction nonleptonic weak interaction standard model four-quark pv interaction corresponding quantity pv observables particle physic
