Measurement of the electron antineutrino mass from the beta spectrum of gaseous tritium

Technical Report · Mon Dec 01 00:00:00 EST 1986

DOI:https://doi.org/10.2172/6912423· OSTI ID:6912423

Knapp, D A

A measurement has been made of the mass of the electron antineutrino using the beta spectrum from a source of gaseous molecular tritium, and an upper limit of 36 eV/c/sup 2/ has been set on this mass. This measurement is the first upper limit on neutrino mass that does not rely on assumptions about the atomic configuration after the beta decay, and it has significantly smaller systematic errors associated with it than do previous measurements. 130 refs., 83 figs., 8 tabs.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6912423
• Report Number(s): LA-10877-T; ON: DE87004782
• Resource Relation: Other Information: Thesis. Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON ANTINEUTRINOS
MASS
BETA DECAY
BETA SPECTRA
EXPERIMENTAL DATA
PHASE SPACE
TRITIUM
ANTILEPTONS
ANTIMATTER
ANTINEUTRINOS
ANTIPARTICLES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DATA
DECAY
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
MATHEMATICAL SPACE
NEUTRINOS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
RADIOISOTOPES
SPACE
SPECTRA
YEARS LIVING RADIOISOTOPES
651220* - Nuclear Properties & Reactions
A=1-5
Experimental
645102 - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties