Shell model calculation for the /sup 71/Ga(. nu. ,e/sup -/)/sup 71/Ge solar neutrino detector

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.32.796· OSTI ID:5310072

Mathews, G J; Bloom, S D; Fuller, G M; Bahcall, J N

Gamow-Teller allowed neutrino capture transitions between the ground state of /sup 71/Ga and accessible excited states in /sup 71/Ge are calculated in a model space of the 2p and 1f shells. The total (p,n) Gamow-Teller strength function is also calculated. The effects of model-space truncation are systematically investigated and detailed comparisons are made between calculated and experimental spectroscopic data for states in /sup 71/Ga and /sup 71/Ge. The calculated effect of excited-state transitions is in good agreement with a previous phenomenological estimate (based upon beta decay measurements in the vicinity of mass 71) except for the higher energy /sup 8/B neutrinos. For these rare high energy neutrinos, there is not yet sufficient experimental information to make a complete phenomenological estimate. The total cross section for /sup 8/B neutrinos is calculated to be about ten times larger than the ground-state--to--ground-state capture rate. The overall uncertainty in the capture rate for a /sup 71/Ga detector that is caused by excited state transitions is estimated to be about 5 percent for a standard solar model and about 1 percent for nonstandard models that are consistent with the /sup 37/Cl solar neutrino experiment.

• Research Organization: Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
• OSTI ID: 5310072
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 32:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
651612 -- Nuclear Properties & Reactions
A=59-89
Theoretical-- Radioactive Decay-- (-1987)
651613 -- Nuclear Properties & Reactions
A=59-89
Theoretical-- Energy Levels & Transitions-- (-1987)
651615* -- Nuclear Properties & Reactions
A=59-89
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-PLUS DECAY RADIOISOTOPES
BORON 8
BORON ISOTOPES
CAPTURE
CHLORINE 37
CHLORINE ISOTOPES
CROSS SECTIONS
DAYS LIVING RADIOISOTOPES
DECAY
DETECTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
EVEN-ODD NUCLEI
FERMIONS
GALLIUM 71 TARGET
GAMOW-TELLER RULES
GERMANIUM 71
GERMANIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEPTON REACTIONS
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINO DETECTION
NEUTRINO REACTIONS
NEUTRINOS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
Q-VALUE
RADIATION DETECTION
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SOLAR NEUTRINOS
SOLAR PARTICLES
SOLAR RADIATION
STABLE ISOTOPES
STELLAR RADIATION
TARGETS
TOTAL CROSS SECTIONS