Published August 1995
| Version v1
Journal article
Further studies on the evidence for a 17-keV neutrino in a 14C-doped germanium detector
Creators
- Wietfeldt, F.E.1, 2, 3, 4, 5, 6, 7
- Norman, E.B.1, 2, 3, 4, 5, 6, 7
- Chan, Y.D.1, 2, 3, 4, 5, 6, 7
- da Cruz, M.T.F.1, 2, 3, 4, 5, 6, 7
- Garcia, A.1, 2, 3, 4, 5, 6, 7
- Haller, E.E.1, 2, 3, 4, 5, 6, 7
- Hansen, W.L.1, 2, 3, 4, 5, 6, 7
- Hindi, M.M.1, 2, 3, 4, 5, 6, 7
- Larimer, R.1, 2, 3, 4, 5, 6, 7
- Lesko, K.T.1, 2, 3, 4, 5, 6, 7
- Luke, P.N.1, 2, 3, 4, 5, 6, 7
- Stokstad, R.G.1, 2, 3, 4, 5, 6, 7
- Sur, B.1, 2, 3, 4, 5, 6, 7
- Zlimen, I.1, 2, 3, 4, 5, 6, 7
- 1. Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505 (United States)
- 2. Department of Materials Science and Mineral Engineering, University of California, Berkeley, California 94720 (United States)
- 3. Engineering Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
- 4. Physics Department, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
- 5. Physics Institute, University of Sao Paulo, Sao Paulo (Brazil)
- 6. Physics Department, University of California, Berkeley, California 94720 (United States)
- 7. Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
Description
We have studied the beta spectrum of 14C using a unique 14C-doped germanium detector. In 1991 an initial report was made of a distortion in the spectrum that could be explained by the emission of a 17-keV neutrino in approximately 1% of the decays. Further tests have shown that the observed distortion was most likely caused by systematic effects related to the detector's active guard ring. A new measurement with a smaller data sample shows no sign of this distortion. In addition, we find the Q value of 14C decay to be 155.95±0.07(stat.)±0.21(sys.) keV, in disagreement with a previous precision measurement
Additional details
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 52
- Journal Issue
- 2
- Journal Page Range
- p. 1028-1040.
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27020832
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- BETA DECAY; BETA SPECTRA; CARBON 14; EIGENSTATES; ENERGY SPECTRA; GERMANIUM; KOBAYASHI-MASKAWA MATRIX; MASS; NEUTRINOS; STANDARD MODEL; U-1 GROUPS
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON ISOTOPES; DECAY; ELEMENTARY PARTICLES; ELEMENTS; EVEN-EVEN NUCLEI; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; ISOTOPES; LEPTONS; LIE GROUPS; LIGHT NUCLEI; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATRICES; METALS; NUCLEAR DECAY; NUCLEI; PARTICLE MODELS; QUANTUM FIELD THEORY; RADIOISOTOPES; SPECTRA; SYMMETRY GROUPS; U GROUPS; UNIFIED GAUGE MODELS; YEARS LIVING RADIOISOTOPES