Gamow-Teller ([ital p],[ital n]) and ([ital n],[ital p]) strength in a dressed extended random phase approximation

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.514· OSTI ID:7032986

Geurts, W J.W.; Allaart, K ^[1]; Dickhoff, W H ^[2]

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1. Department of Physics and Astronomy, Free University, De Boelelaan 1081, 1081 HV Amsterdam (Netherlands)
2. Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)

Induced forces of second order in the nucleon nucleon [ital G]-matrix interaction are included in a random phase approximation (RPA) type formalism with dressed single-particle propagators. The predictions of a considerable amount of Gamow-Teller ([ital n],[ital p]) strength for magic nuclei with neutron excess, found in earlier dressed RPA calculations, are not modified by the induced forces. Also the distribution of ([ital p],[ital n]) strength is only a little affected by the induced interactions. It is therefore concluded that the relatively simple dressed RPA method is a suitable one to calculate excitation strengths.

• OSTI ID: 7032986
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

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663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
G MATRIX
GAMOW-TELLER RULES
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MAGIC NUCLEI
MANY-BODY PROBLEM
MATRICES
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON REACTIONS
RANDOM PHASE APPROXIMATION