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Gamow-Teller strength in A =37 nuclei

Journal Article · · Physical Review, C (Nuclear Physics); (United States)
; ;  [1];  [2]
  1. Physics Department, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  2. Indiana University, Bloomington, Indiana 47401 (United States)

A comparison is made of the recent {beta}{sup +}-decay measurements of Garcia {ital et} {ital al}. and the 1981 {sup 37}Cl({ital p},{ital n}){sup 37}Ar measurements of Rapaport {ital et} {ital al}. in order to see whether the experiments are consistent. Garcia {ital et} {ital 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. This approach leaves a range of possible values open for these quantities which we investigate. We find that the experiments could be consistent within a theoretically unlikely 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 the consistency of the two experiments can be tested more conclusively.

OSTI ID:
6948976
Journal Information:
Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 46:6; ISSN 0556-2813; ISSN PRVCA
Country of Publication:
United States
Language:
English