Results on {ital {nu}}{sub {ital {ital {mu}}}} {r_arrow} {ital {nu}}{sub {ital {ital e}}} Neutrino Oscillations from the LSND Experiment

Journal Article · Sat Aug 01 00:00:00 EDT 1998 · Physical Review Letters

OSTI ID:643702

Church, E D; McIlhany, K; Stancu, I; Strossman, W; VanDalen, G J ^[1]; Vernon, W ^[2]; Caldwell, D O; Yellin, S ^[3]; Smith, D; Waltz, J ^[4]; Cohen, I ^[5]; Burman, R L; Donahue, J B; Federspiel, F J; Garvey, G T; Louis, W C; Sandberg, V; Tayloe, R; White, D H ^[6]; Gunasingha, R M ; Imlay, R; Kim, H J; Mills, G B; Wadia, N ^[7]; Johnston, K ^[8]; Reeder, R A ^[9]; Fazely, A ^[10]; Athanassopoulos, C; Auerbach, L B; Majkic, R; Works, D; Xiao, Y ^[11]

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1. University of California, Riverside, California 92521 (United States)
2. University of California, San Diego, California 92093 (United States)
3. University of California, Santa Barbara, California 93106 (United States)
4. Embry Riddle Aeronautical University, Prescott, Arizona 86301 (United States)
5. Linfield College, McMinnville, Oregon 97128 (United States)
6. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
7. Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
8. Louisiana Tech University, Ruston, Louisiana 71272 (United States)
9. University of New Mexico, Albuquerque, New Mexico 87131 (United States)
10. Southern University, Baton Rouge, Louisiana 70813 (United States)
11. Temple University, Philadelphia, Pennsylvania 19122 (United States)

A search for {nu}{sub {mu}}{r_arrow}{nu}{sub e} oscillations has been conducted with the LSND apparatus using {nu}{sub {mu}} from {pi}{sup +} decay in flight. Two analyses observe a total of 40 beam-on high-energy (60{endash}200 MeV) electron events consistent with the {nu}{sub e}thinspC{r_arrow}e{sup {minus}} thinspX inclusive reaction. This number is significantly above the 21.9{plus_minus}2.1 events expected from the {nu}{sub e} contamination in the beam and the beam-off background. If interpreted as an oscillation signal, the observed oscillation probability of (2.6{plus_minus}1.0{plus_minus}0.5){times}10{sup {minus}3} is consistent with the previously reported {ovr {nu}}{sub {mu}}{r_arrow}{ovr {nu}}{sub e} oscillation evidence from LSND. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 643702
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
LAMPF LINAC
MONTE CARLO METHOD
NEUTRINO BEAMS
NEUTRINO DETECTION
NEUTRINO OSCILLATION
PION PLUS REACTIONS