Search for the decay K(L) ---&gt; pi0 e+ e-

Alavi-Harati, A.

doi:10.1103/PhysRevLett.86.397

Search for the decay K(L) ---> pi0 e+ e-

Journal Article · Fri Sep 01 04:00:00 EDT 2000 · Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.86.397· OSTI ID:1847776

Alavi-Harati, A.

We report on a search for the decay Kl -> pi0 e+ e- carried out by the KTeV/E799 experiment at Fermilab. This decay is expected to have a significant CP violating contribution and the measurement of its branching ratio could support the CKM mechanism for CP violation or could point to new physics. Two events were observed in the 1997 data with an expected background of 1.06 +-0.41 events, and we set an upper limit Br(Kl -> pi0 e+ e-) < 5.1 x 10^-10 at the 90% confidence level.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: KTeV

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1847776

Report Number(s):: FERMILAB-PUB-00-225-E; arXiv:hep-ex/0009030; oai:inspirehep.net:533385

Journal Information:: Phys.Rev.Lett., Journal Name: Phys.Rev.Lett. Vol. 86

Country of Publication:: United States

Language:: English

References (15)

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