Evidence for the decay K+ ---> pi+ neutrino anti-neutrino
Aug, 19979 pages
Published in:
- Phys.Rev.Lett. 79 (1997) 2204-2207
e-Print:
- hep-ex/9708031 [hep-ex]
Report number:
- BNL-64631,
- KEK-PREPRINT-97-115,
- PRINCETON-HEP-97-12,
- TRI-PP-97-28,
- TRI--PP--97--28
Experiments:
Citations per year
Abstract: (arXiv)
An event consistent with the signature expected for the rare kaon decay K+ --> pi+ nu anti-nu has been observed. In the pion momentum region examined, 211<P<230 MeV/c, the backgrounds are estimated to contribute 0.08 +/- 0.03 events. If the event is due to K+ --> pi+ nu anti-nu, the branching ratio is (4.2 +9.7/-3.5) x E-10.Note:
- 10 pages, LaTeX, 5 Postscript figures
- K+: semileptonic decay
- K+: rare decay
- K+: branching ratio
- neutrino: pair production
- experimental results
- Brookhaven PS
- K+ --> pi+ neutrino antineutrino
References(21)
Figures(6)