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Experimental study of the radiative decays K+ -> mu+ nu e+ e- and K+ -> e+ nu e+ e-

Author

Poblaguev A. A., Dr.	Institute for Nuclear Research of Russian Academy of Sciences
Lichard Peter, Prof. Ing. DrSc.	IEAP
E865 Collaboration	Brookhaven National Laboratory

Year

2002

Scientific journal

Phys. Rev. Lett. 89, 061803

Web

http://prola.aps.org/abstract/PRL/v89/i6/e061803

Abstract

Experiment 865 at the Brookhaven Alternating Gradient Synchrotron obtained 410 K+→e+νe+e- and 2679 K+→μ+νe+e- events including 10% and 19% background. The branching ratios were measured to be [2.48±0.14(stat)±0.14(syst)]×10-8 (mee>150 MeV) and (7.06±0.16±0.26)×10-8 (mee>145 MeV), respectively. Results for the decay form factors are presented.

Grants

MSM 6840770029

Fundamental Experiments in the Physics of the Microworld

Cite article as:

A. Poblaguev, P. Lichard, . E865 Collaboration, "Experimental study of the radiative decays K+ -> mu+ nu e+ e- and K+ -> e+ nu e+ e-", Phys. Rev. Lett. 89, 061803 (2002)