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

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:5480749

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

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 is described. 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. The author discusses the excited final molecular state calculations and describe the experimental apparatus.

• 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; AC02-76CH03000; AC02-81ER40033
• OSTI ID: 5480749
• Report Number(s): DOE/ER/49933-80; CONF-8411180-1; ON: DE85015290
• Resource Relation: Conference: 3. mini-neutrino conference, Telemark, WI, USA, 1 Nov 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
HELIUM TRITIDES
ENERGY-LEVEL TRANSITIONS
BETA DECAY
EXCITED STATES
MEASURING METHODS
RESOLUTION
TRITIUM
VIBRATIONAL STATES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DECAY
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
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
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties