Appel R, Atoyan GS, Bassalleck B, Bergman DR, Cheung N, Dhawan S, Do H, Egger J, Eilerts S, Fischer H, Herold W, Issakov VV, Kaspar H, Kraus DE, Lazarus DM, Lichard P, Lowe J, Lozano J, Ma H, Majid W, Menzel W, Pislak S, Poblaguev AA, Rehak P, Sher A, Thompson JA, Truöl P, Zeller ME. Search for lepton flavor violation in K+ decays into a charged pion and two leptons.
PHYSICAL REVIEW LETTERS 2000;
85:2877-2880. [PMID:
11005958 DOI:
10.1103/physrevlett.85.2877]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2000] [Indexed: 05/23/2023]
Abstract
A search for lepton flavor violating decays, K+ --> mu+ mu+ pi-, K+ --> e+ e+ pi-, K+ --> pi+ e+ mu-, K+ --> mu+ e+ pi-, and pi0 --> e+ mu-, was performed using the data collected in Experiment E865 at the Brookhaven Alternating Gradient Synchrotron. No signal was found in any of the decay modes. At the 90% confidence level, the branching ratios are less than 3.0x10(-9), 6.4x10(-10), 5. 2x10(-10), 5.0x10(-10), and 3.4x10(-9), respectively.
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