4 papers
First observation of the decay K+ -> e+ nu mu+ mu-
H. Ma, R. Appel, G. S. Atoyan +23
Experiment 865 at the Brookhaven AGS has observed the decay K^+ -> e^+ nu mu^+ mu^-. The branching ratio extracted is (1.72 +/- 0.37(stat) +/- 0.17(syst) +/- 0.19(model)) x 10^{-8}…
New, high statistics measurement of the K+ -> pi0 e+ nu (Ke3) branching ratio
A. Sher, R. Appel, G. S. Atoyan +25
E865 at the Brookhaven National Laboratory AGS collected about 70,000 K+(e3) events with the purpose of measuring the relative K+(e3) branching ratio. The pi0 in all the decays was…
High statistics measurement of Ke4 decay properties
S. Pislak, R. Appel, G. S. Atoyan +25
We report experimental details and results of a new measurement of the decay K+ -> pi+pi-e+nue (Ke4}. A sample of more than 400,000 Ke4 events with low background has been collecte…
Precise Measurement of Muon Capture on the Proton
P. Kammel, V. A. Andreev, D. V. Balin +38
The aim of the MuCap experiment is a 1% measurement of the singlet capture rate Lambda_S for the basic electro-weak reaction mu + p -> n + nu_mu. This observable is sensitive to th…