Experiment to measure the electron neutrino mass using a frozen tritium source

Conference · Fri Mar 01 00:00:00 EST 1985

OSTI ID:5818456

Fackler, O; Mugge, M; Sticker, H; White, R M; Woerner, R

We are performing an experiment to determine the electron neutrino mass with the precision of a few eV by measuring the tritium beta decay energy distribution near the endpoint. Key features of the experiment are a 2 eV resolution electrostatic spectrometer and a high-activity frozen tritium source. It is important that the source have electronic wavefunctions which can be accurately calculated. These calculations can be precisely made for tritium and the HeT/sup +/ daughter ion and allow determination of branching fractions to 0.1% and energy of the excited states to 0.1 eV. We discuss the excited final molecular state calculations and describe the experimental apparatus. 2 references, 6 figures.

• Research Organization: Rockefeller Univ., New York (USA); Fermi National Accelerator Lab., Batavia, IL (USA); Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5818456
• Report Number(s): UCRL-92373; CONF-8410224-4; ON: DE85009584
• Resource Relation: Conference: AIP conference on neutrino mass and gauge structure of weak interaction, Telemark, WI, USA, 24 Oct 1984; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON NEUTRINOS
MASS
BETA-MINUS DECAY
ELECTROSTATIC ANALYZERS
MEASURING METHODS
TRITIUM
ULTRALOW TEMPERATURE
BEAM ANALYZERS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DECAY
ELEMENTARY PARTICLES
FERMIONS
HYDROGEN ISOTOPES
ISOTOPES
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
NEUTRINOS
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties