Isospin-spin excitations in the A=58 mass region: The {sup 58}Ni({sup 3}He,t){sup 58}Cu reaction

Journal Article · Tue Jul 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.014317· OSTI ID:21192034

Bes, D R; Civitarese, O ^[1]

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1. Laboratorio Tandar, CAC, CNEA, Av. Gral. Paz 1499, 1650 Partido de Gral, San Martiin, Argentina and Department of Physics, University of La Plata, c. c. 67 1900, La Plata (Argentina)

The experimental information on isospin-spin excitations around {sup 58}Ni is analyzed by using isoscalar and isovector pairing vibrations, Gamow-Teller (GT) modes, and their couplings. It is found that the proposed coupling scheme accounts for a sizable amount of the strength associated with isospin-spin excitations, which include transitions to both one- and two-phonon states. The calculations are performed within the framework of perturbation theory, accounting for the renormalization of the charge by the collective GT excitations.

• OSTI ID: 21192034
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COPPER 58
COUPLING
EXCITATION
GAMOW-TELLER RULES
HELIUM 3
ISOSPIN
ISOVECTORS
MASS
NICKEL 58 TARGET
NUCLEAR REACTIONS
PERTURBATION THEORY
PHONONS
RENORMALIZATION
SPIN