APS » PROLA » Phys. Rev. Lett. » Volume 72 » Issue 24

Phys. Rev. Lett. 72, 3758 - 3761 (1994)

Limit on the Branching Ratio of KL→π0νν̅

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M. Weaver et al. (E799 Collaboration)
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Received 8 March 1994

We report on a search for the decay KL→π0νν̅ by the Fermilab E799 Collaboration. The partial width for this mode is related in a calculable way to the CP violation parameters of the standard model. In particular, the decay KL→π0νν̅ is predicted to proceed almost entirely via a direct CP violating amplitude. No events were observed, allowing us to set an upper limit on the branching ratio of B(KL→π0νν̅ )<5.8×10-5 at the 90% confidence level.


©1994 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v72/p3758
DOI: 10.1103/PhysRevLett.72.3758
PACS: 13.20.Eb, 11.30.Er

* Present address: Seoul National University, Seoul 151-42, Korea.

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