A study of Gamow-Teller strength in A=37 nuclei

Technical Report · Tue Apr 14 00:00:00 EDT 1992

OSTI ID:10114844

Aufderheide, M B; Bloom, S D; Resler, D A ^[1]; Goodman, C D ^[2]

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1. Lawrence Livermore National Lab., CA (United States)
2. Indiana Univ., Bloomington, IN (United States)

An analysis is made of the recent {beta}+ decay measurements of Garcia et al., in order to see whether the 1981 {sup 37}Cl(p,n){sup 37}Ar measurements of Rapaport et al. are consistent with them. Garcia et al., were not able to determine the amount of Gamow-Teller strength in the isobaric analog state (IAS) or the Coulomb mixing of Fermi strength to a state near the IAS, and were forced to determine the amount of Gamow-Teller strength in the daughter 1371 keV state by making the branching ratios sum to unity. These uncertainties leave a range of possible values open which we investigate. We find that the experiments are consistent within part of this range. We also examine the effect of this range of allowed values on solar and supernova neutrino cross sections of {sup 37}Cl and find weak dependence on the uncertainties described here. We discuss how this range can be narrowed so that the consistency of the two experiments can be conclusively tested.

• Research Organization: Lawrence Livermore National Lab., CA (United States); Indiana Univ., Bloomington, IN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10114844
• Report Number(s): UCRL-ID--111041; ON: DE93005738
• Country of Publication: United States
• Language: English

Related Subjects

662320
663210
663430
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 37
BETA-PLUS DECAY
CALCIUM 37
CHARGE-EXCHANGE REACTIONS
CHLORINE 37 TARGET
CROSS SECTIONS
GAMOW-TELLER RULES
GROUND-STATE RADIOACTIVITY
NEUTRINO INTERACTIONS
NUCLEON-INDUCED REACTIONS AND SCATTERING
PROTON REACTIONS
SOLAR NEUTRINOS