Published May 2002 | Version v1
Journal article Metadata-only

Gamow-Teller strength and the spin-isospin coupling constants of the Skyrme energy functional

Creators

  • 1. Service de Physique Nucleaire Theorique, Universite Libre de Bruxelles, CP 229, B-1050 Brussels (Belgium)
  • 2. Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)
  • 3. Physics Division, Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, Tennessee 37831 (United States)
  • 4. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States)
  • 5. Joint Institute for Heavy Ion Research, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831 (United States)
  • 6. Institute of Theoretical Physics, Warsaw University, ul. Hoza 69, PL-00681, Warsaw (Poland)

Description

We investigate the effects of the spin-isospin channel of the Skyrme energy functional on predictions for Gamow-Teller distributions and superdeformed rotational bands. We use the generalized Skyrme interaction SkO' to describe even-even ground states and then analyze the effects of time-odd spin-isospin couplings, first term by term and then together via linear regression. Some terms affect the strength and energy of the Gamow-Teller resonance in finite nuclei without altering the Landau parameter g0' that to leading order determines spin-isospin properties of nuclear matter. Though the existing data are not sufficient to uniquely determine all the spin-isospin couplings, we are able to fit them locally. Altering these coupling constants does not change the quality with which the Skyrme functional describes rotational bands

Additional details

Identifiers

DOI
10.1103/PhysRevC.65.054322;
arXiv
arXiv:nucl-th/0112056v1;

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
65
Journal Issue
5
Journal Page Range
p. 054322-054322.19
ISSN
0556-2813
CODEN
PRVCAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35090648
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BINDING ENERGY; COUPLING CONSTANTS; GAMOW-TELLER RULES; ISOSPIN; NUCLEAR FORCES; NUCLEAR MATTER; NUCLEAR STRUCTURE; RESONANCE; ROTATIONAL STATES; SKYRME POTENTIAL; SUPERDEFORMED NUCLEI
Descriptors DEC
DEFORMED NUCLEI; ENERGY; ENERGY LEVELS; EXCITED STATES; MATTER; NUCLEI; NUCLEON-NUCLEON POTENTIAL; PARTICLE PROPERTIES; POTENTIALS

Optional Information

Notes
(c) 2002 The American Physical Society