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Structure of the Gamow-Teller Resonance in {sup 58}Cu Studied via the Proton- and {gamma}-Decay Measurements

Journal Article · · Physics of Atomic Nuclei
DOI:https://doi.org/10.1134/1.1806917· OSTI ID:20692634
 [1]
  1. Research Center for Nuclear Physics, Osaka University, Osaka (Japan)
The Gamow-Teller (GT) states in {sup 58}Cu have been studied by {sup 58}Ni({sup 3}He, t + p) and {sup 58}Ni({sup 3}He, t + {gamma}) coincidence experiments at E({sup 3}He) = 450 MeV and {theta} = 0 deg. Proton emissions from the GT states in {sup 58}Cu to the hole states in {sup 57}Ni have been observed with solid-state detectors in coincidence with high-energy tritons measured with a magnetic spectrometer. For the first time, {gamma}-ray emissions from the excited states in {sup 58}Cu and in {sup 57}Ni, following the {sup 58}Ni({sup 3}He, t + p) reaction at intermediate energies, have also been observed in coincidence with tritons. The wave functions of the T = 1 and T = 2 GT states with the f{sup -1}{sub 7/2} neutron-hole configuration are inferred to be strongly coupled to 2p-2h configurations, making fragmented GT strengths in {sup 58}Cu.
OSTI ID:
20692634
Journal Information:
Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 9 Vol. 67; ISSN 1063-7788; ISSN PANUEO
Country of Publication:
United States
Language:
English