Search for ΔS=2 Nonleptonic Hyperon Decays
Abstract
A sensitive search for the rare decays Ω-→Λπ- and Ξ0→pπ- 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 |ΔS|=2 nonleptonic hyperon decays, provided the decays occur through parity-odd operators. We obtain the branching-fraction limits B(Ω-→Λπ-)<2.9×10-6 and B(Ξ0→pπ-)<8.2×10-6, both at 90% confidence level.
- Publication:
-
Physical Review Letters
- Pub Date:
- March 2005
- DOI:
- 10.1103/PhysRevLett.94.101804
- arXiv:
- arXiv:hep-ex/0503036
- Bibcode:
- 2005PhRvL..94j1804W
- Keywords:
-
- 13.30.Eg;
- 12.15.Ji;
- 14.20.Jn;
- Hadronic decays;
- Applications of electroweak models to specific processes;
- Hyperons;
- High Energy Physics - Experiment
- E-Print:
- 4 pages, 5 figures, PRL paper