Search for the Rare Decay KL --> pi0 ee

dc.creatorKTeV collaboration
dc.creatorAlavi-Harati, A.
dc.date2003-09-26
dc.date.accessioned2026-07-07T10:28:20Z
dc.date.available2026-07-07T10:28:20Z
dc.descriptionThe KTeV/E799 experiment at Fermilab has searched for the rare kaon decay KL--> pi0ee. This mode is expected to have a significant CP violating component. The measurement of its branching ratio could support the Standard Model or could indicate the existence of new physics. This letter reports new results from the 1999-2000 data set. One event is observed with an expected background at 0.99 +/- 0.35 events. We set a limit on the branching ratio of 3.5 x 10^(-10) at the 90% confidence level. Combining the results with the dataset taken in 1997 yields the final KTeV result: BR(KL --> pi0 ee) < 2.8 x 10^(-10) at 90% CL.
dc.description4 pages, three figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0309072
dc.identifierhttp://arxiv.org/abs/hep-ex/0309072
dc.identifierPhys.Rev.Lett.93:021805,2004
dc.identifierdoi:10.1103/PhysRevLett.93.021805
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177415
dc.subjectHigh Energy Physics - Experiment
dc.titleSearch for the Rare Decay KL --> pi0 ee
dc.typetext

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