Kaon-Nucleon Couplings for Weak Decays of Hypernuclei

Details Kaon-Nucleon Couplings for Weak Decays of Hypernuclei Kaon-Nucleon Couplings for Weak Decays of Hypernuclei

1995-08-11

arxiv.org/abs/hep-ph/9508287v2

Phys.Rev.C53:441-447,1996; Erratum-ibid.C54:2786,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

uuencoded latex file with figures, 14 pages. A factor of two in the numerical values given for the p-wave amplitudes is correc

Scientific paper

10.1103/PhysRevC.53.441

We investigate the weak kaon-nucleon (NNK) S-wave and P-wave interactions using heavy baryon chiral perturbation theory. The leading 1-loop SU(3) breaking contributions to the $ppK$, $pnK$, and $nnK$ couplings are computed. We find that they suppress all NNK amplitudes by $30\%$ to $50\%$. The ratio of neutron-induced to proton-induced hypernuclear decay widths is sensitive to such reductions. It has been argued that the discrepancy between the predicted and observed P-wave amplitudes in $\Delta s=1$ hyperon decay results from an accidental cancellation between tree-level amplitudes, and is not a fundamental problem for chiral perturbation theory. Agreement between experimentally determined NNK P-wave amplitudes and our estimates would support this explanation.

Affiliated with

Also associated with

No associations

Rating

Kaon-Nucleon Couplings for Weak Decays of Hypernuclei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Kaon-Nucleon Couplings for Weak Decays of Hypernuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kaon-Nucleon Couplings for Weak Decays of Hypernuclei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-544871