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First observation of the decay K+ -> e+ nu_e mu+ mu-

Author

Ma Hong, Dr.	Brookhaven National Laboratory
Lichard Peter, Prof. DrSc.	IEAP
E865 Collaboration	Brookhaven National Laboratory

Year

2006

Scientific journal

Phys. Rev. D 73, 037101

Web

http://link.aps.org/abstract/PRD/v73/e037101

Abstract

Experiment 865 at the Brookhaven AGS has observed the decay K+-->e+nueµ+µ-. The branching ratio extracted is (1.72±0.37(stat)±0.17(syst)±0.19(model))×10-8 where the third term in the error results from the use of a model to extrapolate into a kinematic region dominated by background.

Grants

MSM 6840770029

Fundamental Experiments in the Physics of the Microworld

Cite article as:

H. Ma, P. Lichard, . E865 Collaboration, "First observation of the decay K+ -> e+ nu_e mu+ mu-", Phys. Rev. D 73, 037101 (2006)