Chiral Symmetry and Weak Decay of Hypernuclei

Makoto Oka

Chiral Symmetry and Weak Decay of Hypernuclei

Nuclear Theory 2007-05-23 v1

Authors: Makoto Oka

Abstract

The weak decays of hyperons and hypernuclei are studied from the chiral symmetry viewpoint. The soft pion relations are useful in understanding the isospin properties of the weak hyperon decays. Recent development on the short-range part of the $\Lam N\to NN$ weak transitions shows fairly good account of the weak decays of hypernuclei, though it fails to explain the $n/p$ ratio. The $\pip$ decays of light hypernuclei are studied in the soft pion approach. They are related to the $\DI=3/2$ amplitudes of the nonmesonic decay.

Keywords

chiral symmetry hypernuclei weak decay soft pion relations lambda n to nn transition nonmesonic decay light hypernuclei

Cite

@article{arxiv.nucl-th/9906041,
  title  = {Chiral Symmetry and Weak Decay of Hypernuclei},
  author = {Makoto Oka},
  journal= {arXiv preprint arXiv:nucl-th/9906041},
  year   = {2007}
}

Comments

7 pages, Talk presented at International Symposium in Nuclear Electro-Weak Spectroscopy (NEWS99) for Symmetries and Electro-Weak Nuclear Processes, Osaka, March 1999

Chiral Symmetry and Weak Decay of Hypernuclei

Abstract

Keywords

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