Search for neutrino oscillations at LAMPF
Thesis/Dissertation
·
OSTI ID:5661820
The E645 experiment at Los Alamos is designed to search for the phenomenon of neutrino oscillations. The particular modes of oscillation searched for are: anti nu/sub ..mu../ ..-->.. anti nu/sub e/ and nu/sub e/ ..-->.. anti nu/sub e/. The neutrino source is the LAMPF proton beam stop. The detector consists of 20 tons of liquid scintillator for particle calorimetry and proportional drift tubes for particle tracking. The anti nu/sub e/ detection mechanism employs the positron trigger that occurs from the anti nu/sub e/ inverse beta decay reaction on the free protons contained in the liquid scintillator (CH/sub 2/): anti nu/sub e/ + p ..-->.. e/sup +/ + n/sup 0/. A preliminary data run was performed in the fall of 1986. The analysis showed that there were 0.04 (+/- 0.6) beam induced events per LAMPF-day; a result that is consistent with zero oscillation events for the data run. The null result confirms an excluded range of sin/sup 2/2theta and anti om/sup 2/ values for a anti nu/sub ..mu../ ..-->.. anti nu/sub e/ oscillation. The E645 experiment can also uniquely rule out the exclusive nu/sub e/ ..-->.. anti nu/sub e/ oscillation process, which is expected if the nu/sub e/ is a Majorana neutrino. The 11.4 LAMPF-day run yields the only available limits on this oscillation process.
- Research Organization:
- Ohio State Univ., Columbus (USA)
- OSTI ID:
- 5661820
- Country of Publication:
- United States
- Language:
- English
Similar Records
Search for neutrino oscillations at LAMPF
Neutrino oscillation studies at LAMPF
Experiment to investigate anti. nu. /sub. mu. /. -->. anti. nu. /sub e/ oscillations at Los Alamos Meson Physics Facility
Conference
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:5795226
Neutrino oscillation studies at LAMPF
Conference
·
Thu Sep 01 00:00:00 EDT 1994
·
OSTI ID:10178688
Experiment to investigate anti. nu. /sub. mu. /. -->. anti. nu. /sub e/ oscillations at Los Alamos Meson Physics Facility
Conference
·
Wed Dec 31 23:00:00 EST 1980
·
OSTI ID:6835755
Related Subjects
645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANTILEPTONS
ANTIMATTER
ANTINEUTRINOS
ANTIPARTICLES
DATA
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
INFORMATION
LAMPF LINAC
LEPTONS
LIMITING VALUES
LINEAR ACCELERATORS
MASSLESS PARTICLES
MESON FACTORIES
MUON NEUTRINOS
NEUTRINO OSCILLATION
NEUTRINOS
NUMERICAL DATA
WEINBERG ANGLE
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANTILEPTONS
ANTIMATTER
ANTINEUTRINOS
ANTIPARTICLES
DATA
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
INFORMATION
LAMPF LINAC
LEPTONS
LIMITING VALUES
LINEAR ACCELERATORS
MASSLESS PARTICLES
MESON FACTORIES
MUON NEUTRINOS
NEUTRINO OSCILLATION
NEUTRINOS
NUMERICAL DATA
WEINBERG ANGLE