Limits on neutrino oscillations from [bar [nu]][sub [ital e]] appearance

Journal Article · Sun Jan 31 23:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.811· OSTI ID:6887382

Freedman, S J; Fujikawa, B K; Napolitano, J; Nelson, J E ^[1]; McKeown, R D ^[2]; Lesko, K T ^[3]; Donahue, J B; Garvey, G T; Sandberg, V D ^[4]; Choi, W C; Fazely, A; Imlay, R L; Metcalf, W J ^[5]; Durkin, L S; Harper, R W; Ling, T Y; Mitchell, J W; Romanowski, T A; Smith, E S; Timko, M ^[6]

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. California Institute of Technology, Pasadena, California 91125 (United States)
3. Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
4. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
5. Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
6. The Ohio State University, Columbus Ohio 43210 (United States)

A 20-ton neutrino detector located near the Los Alamos Meson Physics Facility beam stop is used to search for [bar [nu]][sub [ital e]] generated via neutrino oscillations from any of the three neutrino types, [nu][sub [mu]], [bar [nu]][sub [mu]], and [nu][sub [ital e]], which radiate from the beam stop. The analysis of three years of data provides limits on the oscillation modes [bar [nu]][sub [mu]][r arrow][bar [nu]][sub [ital e]], [nu][sub [ital e]][r arrow][bar [nu]][sub [ital e]], and [nu][sub [mu]][r arrow][bar [nu]][sub [ital e]], and the lepton-number-violating decay process [mu][sup +][r arrow][ital e][sup +]+[bar [nu]][sub [ital e]]+[nu][sub [mu]]. The 90%-confidence-level limits for [bar [nu]][sub [mu]][r arrow][bar [nu]][sub [ital e]] oscillations are [delta][ital m][sup 2][le]0.14 eV[sup 2] for maximal mixing, and sin[sup 2]2[theta][le]0.024 for large [delta][ital m][sup 2].

• DOE Contract Number: AC03-76SF00098; W-31109-ENG-38; W-7405-ENG-36; AS05-77ER05490
• OSTI ID: 6887382
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:3; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANTILEPTONS
ANTIMATTER
ANTINEUTRINOS
ANTIPARTICLES
BETA DECAY
BOSONS
CABIBBO ANGLE
DECAY
DETECTION
EIGENSTATES
ELECTRON ANTINEUTRINOS
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LAMPF LINAC
LEPTON NUMBER
LEPTONS
LINEAR ACCELERATORS
MASSLESS PARTICLES
MATTER
MEASURING INSTRUMENTS
MESON FACTORIES
MESONS
MUON ANTINEUTRINOS
MUON NEUTRINOS
MUONS
MUONS PLUS
NEUTRINO DETECTION
NEUTRINO OSCILLATION
NEUTRINOS
NUCLEAR DECAY
PARTICLE DECAY
PIONS
PIONS PLUS
POSITRONS
PROBABILITY
PSEUDOSCALAR MESONS
RADIATION DETECTION
RADIATION DETECTORS
SCINTILLATION COUNTERS