Search for the decay KLπ0νν¯ using π0e+eγ

A. Alavi-Harati et al.
Phys. Rev. D 61, 072006 – Published 10 March 2000
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Abstract

We report on a search for the decay KLπ0νν¯, carried out as a part of E799-II, a rare KL decay experiment at Fermilab. Within the standard model, the KLπ0νν¯ decay is dominated by direct CP violating processes, and thus an observation of the decay implies confirmation of direct CP violation. No events were observed, and we set an upper limit for the branching ratio of KLπ0νν¯ to be <5.9×107 at the 90% confidence level.

  • Received 8 July 1999

DOI:https://doi.org/10.1103/PhysRevD.61.072006

©2000 American Physical Society

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Vol. 61, Iss. 7 — 1 April 2000

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