Search for antineutrino oscillations in a neon/hydrogen bubble chamber
Thesis/Dissertation
·
OSTI ID:6264973
The FNAL 15' bubble chamber was exposed to a wide-band antineutrino/sub ..mu../ beam with a slight contamination of antineutrino/sub e/, nu/sub ..mu../ and nu/sub e/. The observed ratio of single-e/sup +/ events to single-..mu../sup +/ events was compared with a Monte-Carlo prediction of the expected antineutrino/sub e//antineutrino/sub ..mu../ charged-current (CC) event ratio due to oscillations, taking into account the expected antineutrino/sub e/ contamination. In the standard two-neutrino oscillation model, the following 90% C.L. limits were found for antineutrino/sub ..mu../ in equilibrium antineutrino/sub e/ oscillations: ..delta..m/sup 2/ < 0.7 eV/sup 2/ (for sin/sup 2/ 2..cap alpha.. = I) and sin/sup 2/ 2..cap alpha.. < 0.018 (for ..delta..m/sup 2/ ..-->.. infinity). The kinemati characteristics of the e/sup +/ events were compared with Monte-Carlo predictions for antineutrino/sub e/ CC interactions and for antineutrino/sub tau/ CC interactions followed by the decay tau/sup +/ ..-->.. e/sup +/ nu/sub e/antineutrino/sub tau/, to set similar limits on antineutrino/sub ..mu../ in equilibrium antineutrino/sub tau/ oscillations: ..delta..m/sup 2/ < 2.2 eV/sup 2/ and sin/sup 2/ 2..cap alpha.. < 0.048.
- Research Organization:
- Michigan Univ., Ann Arbor (USA)
- OSTI ID:
- 6264973
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTINEUTRINO BEAMS
ANTINEUTRINOS
ANTIPARTICLE BEAMS
ANTIPARTICLES
BEAMS
BUBBLE CHAMBERS
ELECTRON ANTINEUTRINOS
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
GAS TRACK DETECTORS
LEPTONS
LIMITING VALUES
MASSLESS PARTICLES
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MUON ANTINEUTRINOS
MUON NEUTRINOS
MUONS
MUONS PLUS
NEUTRINOS
OSCILLATIONS
POSITRONS
RADIATION DETECTORS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTINEUTRINO BEAMS
ANTINEUTRINOS
ANTIPARTICLE BEAMS
ANTIPARTICLES
BEAMS
BUBBLE CHAMBERS
ELECTRON ANTINEUTRINOS
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
GAS TRACK DETECTORS
LEPTONS
LIMITING VALUES
MASSLESS PARTICLES
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MUON ANTINEUTRINOS
MUON NEUTRINOS
MUONS
MUONS PLUS
NEUTRINOS
OSCILLATIONS
POSITRONS
RADIATION DETECTORS