delta S = 2 nonleptonic hyperon decays
High Energy Physics - Experiment
2008-11-26 v1
Abstract
A sensitive search for the rare decays \Omega^- \to \Lambda \pi^- and \Xi^0 \to p \pi^- has been performed using data from the 1997 run of the HyperCP (Fermilab E871) experiment. Limits on other such processes do not exclude the possibility of observable rates for |\Delta S| = 2 nonleptonic hyperon decays, provided the decays occur through parity-odd operators. We obtain the branching-fraction limits B(\Omega^- \to \Lambda \pi^-)< 2.9 x 10^{-6} and B(\Xi^0 \to p \pi^-)< 8.2 x 10^{-6}, both at 90% confidence level.
Cite
@article{arxiv.hep-ex/0503036,
title = {delta S = 2 nonleptonic hyperon decays},
author = {C. G. White and R. A. Burnstein and A. Chakravorty and A. Chan and Y. C. Chen and W. S. Choong and K. Clark and E. C. Dukes and C. Durandet and J. Felix and G. Gidal and P. Gu and H. R. Gustafson and C. Ho and T. Holmstrom and M. Huang and C. James and C. M. Jenkins and D. M. Kaplan and L. M. Lederman and N. Leros and M. J. Longo and F. Lopez and L. C. Lu and W. Luebke and K. B. Luk and K. S. Nelson and H. K. Park and J. -P. Perroud and D. Rajaram and H. A. Rubin and P. K. Teng and J. Volk and S. L. White and P. Zyla},
journal= {arXiv preprint arXiv:hep-ex/0503036},
year = {2008}
}
Comments
4 pages, 5 figures, PRL paper