Experimental Study of the Radiative Decays K+ -> mu+ nu e+e- and K+ -> e+ nu e+e-

Preprint

5 April 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0204006

Abstract

Experiment 865 at the Brookhaven AGS obtained 410 K+ -> e+ nu e+e- and 2679 K+ -> mu+ nu e+e- events including 10% and 19% background. The branching ratios were measured to be (2.48+-0.14(stat.)+-0.14(syst.))x10^-8 (m_ee>150 MeV) and (7.06+-0.16+-0.26)x10^-8 (m_ee>145 MeV), respectively. Results for the decay form factors are presented.

Keywords

EXPERIMENTAL STUDY
RADIATIVE DECAYS
BROOKHAVEN AGS
DECAYS K
M_EE
X10

All Related Versions

Version 1, 2002-04-05, ArXiv
Published version: Physical Review Letters, 89 (6), 061803.

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