RESULTS ON UPSILON(MU) -] UPSILON(E) NEUTRINO OSCILLATIONS FROM THE LSND EXPERIMENT

Authors
ATHANASSOPOULOS C AUERBACH LB BURMAN RL CALDWELL DO CHURCH ED COHEN I DONAHUE JB FAZELY A FEDERSPIEL FJ GARVEY GT GUNASINGHA RM IMLAY R JOHNSTON K KIM HJ LOUIS WC MAJKIC R MCILHANY K MILIS GB REEDER RA SANDBERG V SMITH D STANCU I STROSSMAN W TAYLOE R VANDALEN GJ VERNON W WADIA N WALTZ J WHITE DH WORKS D XIAO Y YELLIN S
Citation
C. Athanassopoulos et al., RESULTS ON UPSILON(MU) -] UPSILON(E) NEUTRINO OSCILLATIONS FROM THE LSND EXPERIMENT, Physical review letters, 81(9), 1998, pp. 1774-1777
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
81
Issue
9
Year of publication
1998
Pages
1774 - 1777
Database
ISI
SICI code
0031-9007(1998)81:9<1774:ROU-UN>2.0.ZU;2-B
Abstract
A search for nu(mu) - nu(e) oscillations has been conducted with the L SND apparatus using v(mu) from pi(+) decay in flight. Two analyses obs erve a total of 40 beam-on high-energy (60-200 MeV) electron events co nsistent with the nu(e) C --> e(-) X inclusive reaction. This number i s significantly above the 21.9 +/- 2.1 events expected from the nu(e) contamination in the beam and the beam-off background. If interpreted as an oscillation signal, the observed oscillation probability of (2.6 +/- 1.0 +/- 0.5) x 10(-3) is consistent with the previously reported <(nu)over bar>(mu) --> <(nu)over bar>(e) oscillation evidence from LSN D.