Evidence for {bold {nu}}{sub {bold {mu}}}{bold {r_arrow}}{bold {nu}}{sub {ital e}} Oscillations from the LSND Experiment at the Los Alamos Meson Physics Facility

Journal Article · Tue Oct 01 04:00:00 EDT 1996 · Physical Review Letters

OSTI ID:388347

A search for {nu}{sub {mu}}{r_arrow}{nu}{sub {ital e}} oscillations has been conducted at the Los Alamos Meson Physics Facility by using {nu}{sub {mu}} from {mu}{sup +} decay at rest. The {nu}{sub {ital e}} are detected via the reaction {nu}{sub {ital ep}}{r_arrow}{ital e}{sup +}{ital n}, correlated with a {gamma} from {ital np}{r_arrow}{ital d}{gamma} (2.2 MeV). The use of tight cuts to identify {ital e}{sup +} events with correlated {gamma} rays yields 22 events with {ital e}{sup +} energy between 36 and 60 MeV and only 4.6{plus_minus}0.6 background events. A fit to the {ital e}{sup +} events between 20 and 60 MeV yields a total excess of 51.0{sub {minus}19.5}{sup +20.2}{plus_minus}8.0 events. If attributed to {nu}{sub {mu}}{r_arrow}{nu}{sub {ital e}} oscillations, this corresponds to an oscillation probability of (0.31{plus_minus}0.12{plus_minus}0.05){percent}. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 388347
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTINEUTRINO-PROTON INTERACTIONS
ANTINEUTRINOS
DEUTERONS
ELECTRON NEUTRINOS
LEPTONIC DECAY
LOS ALAMOS
MESON FACTORIES
MUON NEUTRINOS
MUONS PLUS
NEUTRINO OSCILLATION
NEUTRONS
PHOTONS
POSITRONS
PROTON-NEUTRON INTERACTIONS