Experimental study of the radiative decays K+-->mu(+)nue(+)e(-) and K+-->e(+)nue(+)e(-).
Experiment 865 at the Brookhaven Alternating Gradient Synchrotron obtained 410 K+-->e(+)nue(+)e(-) and 2679 K+-->mu(+)nue(+)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.
Institute for Nuclear Research of Russian Academy of Sciences, Moscow 117 312, Russia.
A A
AA
Poblaguev
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R
Appel
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GS
Atoyan
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B
Bassalleck
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Bergman
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N
Cheung
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Dhawan
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Do
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J
Egger
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Eilerts
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Herold
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Issakov
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Kaspar
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Kraus
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Lazarus
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Lichard
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Lowe
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J
Lozano
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Ma
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Majid
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Pislak
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Rehak
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Sher
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Thompson
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Truöl
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Zeller