beta. sup + decays of sup 37 Ca: Implications for the efficiency of the sup 37 Cl solar. nu. detector

Journal Article · Mon Dec 23 04:00:00 EST 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.3654· OSTI ID:5505528

Garcriaaa, A; Adelberger, E G; Magnus, P V; Swanson, H E ^[1]; Tengblad, O; Molz, D M ^[2]

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1. Nuclear Physics Laboratory, University of Washington, Seattle, Washington 98195 (United States)
2. Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

We studied {sup 37}Ca {beta}{sup +} decays using a mass separated {sup 37}Ca beam and a proton telescope with 16-keV resolution. Delayed {ital p}'s were detected in coincidence with {gamma}'s to identify {ital p} decays of {sup 37}K daughter levels to excited states of {sup 36}Ar. We observed 43 previously undetected proton groups, yielding an integrated {ital B}({ital GT}) twice as large as that observed previously. Although our result increases the efficiency of the {sup 37}Cl detector for counting solar {nu}'s by 6%, its main effect is to reduce uncertainties in this efficiency arising from discrepancies between previous {sup 37}Ca {beta} decay and {sup 37}Cl({ital p},{ital n}) results.

• OSTI ID: 5505528
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:26; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
661300 -- Other Aspects of Physical Science-- (1992-)
663530* -- Nuclear Mass Ranges-- A=20-38-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ARGON 38
ARGON ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BRANCHING RATIO
CALCIUM 37
CALCIUM ISOTOPES
CHLORINE 37 TARGET
CROSS SECTIONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FERMIONS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEPTON REACTIONS
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MILLISEC LIVING RADIOISOTOPES
NEUTRINO REACTIONS
NEUTRINOS
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARTICLE IDENTIFICATION
RADIATIONS
RADIOISOTOPES
SCATTERING
SOLAR NEUTRINOS
SOLAR PARTICLES
SOLAR RADIATION
SPECTRA
STABLE ISOTOPES
STELLAR RADIATION
TARGETS