Nonleptonic Hyperon Decays with QCD Sum Rules
高能物理 - 唯象学
2009-10-31 v3
摘要
Despite measurements which date more than 20 years ago, no straightforward solution of the ratio of the parity-conserving (P-wave) to parity- violating (S-wave) decays of the hyperons has been obtained. Here we use two 2-point methods in QCD sum rules to examine the problem. We find that resonance contributions are needed to fit the data, similar to a chiral perturbation theory treatment.
引用
@article{arxiv.hep-ph/9912530,
title = {Nonleptonic Hyperon Decays with QCD Sum Rules},
author = {E. M. Henley and W-Y. P. Hwang and L. S. Kisslinger},
journal= {arXiv preprint arXiv:hep-ph/9912530},
year = {2009}
}
备注
17 pages, 8 figures