Calculation of molecular final states and their effect on a precision neutrino mass experiment
An experiment to determine the electron neutrino mass is being performed with the precision of a few electron volts by measuring the tritium beta decay energy distribution near the endpoint. At the few electron volt level, a major consideration in the choice of a tritium source is the effect of excited final atomic or molecular states on the beta decay distribution. It is important to choose a source for which the initial and final states can be accurately calculated. Frozen tritium was chosen as the source since the states of molecular tritium and those of the HeT/sup +/ daughter ion have electronic wavefunctions that can be calculated with high accuracy. The effects of final excited states on the neutrino mass determination and the results of these calculations are described.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA); Rockefeller Univ., New York (USA); Fermi National Accelerator Lab., Batavia, IL (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6961519
- Report Number(s):
- UCRL-90687; CONF-840150-4; ON: DE84011071
- Resource Relation:
- Conference: 4. Moriond workshop on massive neutrinos in particle and astro-physics, La Plagne, France, 15 Jan 1984; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Experiment to measure the electron neutrino mass using a frozen tritium source
Experiment to measure the electron neutrino mass using frozen tritium
Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRON NEUTRINOS
MASS
TRITIUM
BETA-MINUS DECAY
BINDING ENERGY
ELECTRONIC STRUCTURE
EXCITED STATES
HELIUM TRITIDES
MEASURING METHODS
WAVE FUNCTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DECAY
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
FERMIONS
FUNCTIONS
HELIUM COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LABELLED COMPOUNDS
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
NEUTRINOS
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
RARE GAS COMPOUNDS
TRITIUM COMPOUNDS
YEARS LIVING RADIOISOTOPES
645100* - High Energy Physics- Particle Interactions & Properties-Experimental
651222 - Nuclear Properties & Reactions
A=1-5
Experimental- Radioactive Decay- (-1987)