1.
Phys Rev Lett
; 84(18): 4043-6, 2000 May 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-10990606
RESUMO
The E815 (NuTeV) neutrino experiment has performed a search for a 33. 9 MeV/c(2) weakly interacting neutral particle produced in pion decay. Such a particle may be responsible for an anomaly in the timing distribution of neutrino interactions in the KARMEN experiment. E815 has searched for this particle's decays in an instrumented decay region; no evidence for this particle was found. The search is sensitive to pion branching ratios as low as 10(-13).