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

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 obser...

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Bibliographic Details
Published in:Physical review letters 1991-12, Vol.67:26
Main Authors: Garcriaaa, A., Adelberger, E.G., Magnus, P.V., Swanson, H.E., Tengblad, O., ISOLDE Collaboration, Molz, D.M.
Format: Article
Language:English
Subjects:
440104 - Radiation Instrumentation- High Energy Physics Instrumentation
661300 - Other Aspects of Physical Science- (1992-)
663530 - Nuclear Mass Ranges- A=20-38- (1992-)
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
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CROSS SECTIONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FERMIONS
INELASTIC SCATTERING
INFORMATION
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
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 PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARTICLE IDENTIFICATION
RADIATIONS
RADIOISOTOPES
SCATTERING
SOLAR NEUTRINOS
SOLAR PARTICLES
SOLAR RADIATION
SPECTRA
STABLE ISOTOPES
STELLAR RADIATION
TARGETS
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Description
Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.67.3654