First observation of the decay K+ -> e+ nu mu+ mu-
High Energy Physics - Experiment
2008-11-26 v3
Abstract
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} where the third term in the error results from the use of a model to extrapolate into a kinematic region dominated by background.
Cite
@article{arxiv.hep-ex/0505011,
title = {First observation of the decay K+ -> e+ nu mu+ mu-},
author = {H. Ma and R. Appel and G. S. Atoyan and B. Bassalleck and D. R. Bergman and N. Cheung and S. Dhawan and H. Do and J. Egger and S. Eilerts and W. Herold and V. V. Issakov and H. Kaspar and D. E. Kraus and D. M. Lazarus and P. Lichard and J. Lowe and J. Lozano and W. Majid and S. Pislak and A. A. Poblaguev and P. Rehak and A. Sher and J. A. Thompson and P. Truoel and M. E. Zeller},
journal= {arXiv preprint arXiv:hep-ex/0505011},
year = {2008}
}
Comments
4 pages, 6 figures, Revtex4. Correction to figure and minor text changes