First observation of the decay K{sup +}{yields}e{sup +}{nu}{sub e}{mu}{sup +}{mu}{sup -}

First observation of the decay K{sup +}{yields}e{sup +}{nu}{sub e}{mu}{sup +}{mu}{sup -}

Experiment 865 at the Brookhaven AGS has observed the decay K{sup +}{yields}e{sup +}{nu}{sub e}{mu}{sup +}{mu}{sup -}. The branching ratio extracted is (1.72{+-}0.37(stat){+-}0.17(syst){+-}0.19(model))x10{sup -8} where the third term in the error results from the use of a model to extrapolate into a...

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Veröffentlicht in:Physical review. D, Particles and fields Particles and fields, 2006-02, Vol.73 (3)
Hauptverfasser: Ma, H., Lazarus, D.M., Rehak, P., Appel, R., Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, Atoyan, G.S., Issakov, V.V., Poblaguev, A.A., Bassalleck, B., Eilerts, S., Lowe, J., Bergman, D.R., Dhawan, S., Do, H., Lozano, J., Majid, W., Zeller, M.E., Cheung, N., Kraus, D.E., Lichard, P., Sher, A.
Format: Artikel
Sprache:eng
Schlagworte:
BRANCHING RATIO
BROOKHAVEN AGS
ELECTRON NEUTRINOS
KAONS PLUS
LEPTONIC DECAY
MUONS MINUS
MUONS PLUS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POSITRONS
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Zusammenfassung:Experiment 865 at the Brookhaven AGS has observed the decay K{sup +}{yields}e{sup +}{nu}{sub e}{mu}{sup +}{mu}{sup -}. The branching ratio extracted is (1.72{+-}0.37(stat){+-}0.17(syst){+-}0.19(model))x10{sup -8} where the third term in the error results from the use of a model to extrapolate into a kinematic region dominated by background.
ISSN:0556-2821
1089-4918
DOI:10.1103/PhysRevD.73.037101