Phys. Rev. Lett. 94, 101804 (2005) [4 pages]Search for ΔS=2 Nonleptonic Hyperon DecaysReceived 29 November 2004; published 18 March 2005 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. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.101804
DOI:
10.1103/PhysRevLett.94.101804
PACS:
13.30.Eg, 12.15.Ji, 14.20.Jn
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