skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Low-lying dipole response in the stable {sup 40,48}Ca nuclei within the second random-phase approximation

Abstract

The low-lying dipole strength distributions of {sup 40}CaCa and {sup 48}Ca, in the energy region between 5 and 10 MeV, are studied within the second random phase approximation (RPA) with Skyrme interaction. Standard RPA models do not usually predict any presence of strength in this energy region, while experimentally a significant amount of strength is found. The inclusion of the 2 particle -2 hole configurations allows to obtain a description in a rather good agreement with the experimental data. The properties of the most collective state are analyzed in terms of its 1 particle -1 hole nature and its transition densities.

Authors:
; ;  [1];  [2];  [3]
  1. GANIL,CEA/DSM-CNRS/IN2P3, Caen (France)
  2. (France)
  3. (Italy)
Publication Date:
OSTI Identifier:
22075605
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1491; Journal Issue: 1; Conference: Conference on nuclear structure and dynamics 2012, Opatija (Croatia), 9-13 Jul 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CALCIUM 40; CALCIUM 48; E1-TRANSITIONS; M1-TRANSITIONS; MEV RANGE; NUCLEAR ELECTRIC MOMENTS; NUCLEAR FORCES; NUCLEAR STRUCTURE; PARTICLE-HOLE MODEL; RANDOM PHASE APPROXIMATION; SKYRME POTENTIAL; STRENGTH FUNCTIONS

Citation Formats

Gambacurta, D., Grasso, M., Catara, F., Institut de Physique Nucleaire, Universite Paris-Sud, IN2P3-CNRS, F-91406 Orsay Cedex, and Dipartimento di Fisica e Astronomia dell'Universita di and INFN Catania. Low-lying dipole response in the stable {sup 40,48}Ca nuclei within the second random-phase approximation. United States: N. p., 2012. Web. doi:10.1063/1.4764236.
Gambacurta, D., Grasso, M., Catara, F., Institut de Physique Nucleaire, Universite Paris-Sud, IN2P3-CNRS, F-91406 Orsay Cedex, & Dipartimento di Fisica e Astronomia dell'Universita di and INFN Catania. Low-lying dipole response in the stable {sup 40,48}Ca nuclei within the second random-phase approximation. United States. doi:10.1063/1.4764236.
Gambacurta, D., Grasso, M., Catara, F., Institut de Physique Nucleaire, Universite Paris-Sud, IN2P3-CNRS, F-91406 Orsay Cedex, and Dipartimento di Fisica e Astronomia dell'Universita di and INFN Catania. Sat . "Low-lying dipole response in the stable {sup 40,48}Ca nuclei within the second random-phase approximation". United States. doi:10.1063/1.4764236.
@article{osti_22075605,
title = {Low-lying dipole response in the stable {sup 40,48}Ca nuclei within the second random-phase approximation},
author = {Gambacurta, D. and Grasso, M. and Catara, F. and Institut de Physique Nucleaire, Universite Paris-Sud, IN2P3-CNRS, F-91406 Orsay Cedex and Dipartimento di Fisica e Astronomia dell'Universita di and INFN Catania},
abstractNote = {The low-lying dipole strength distributions of {sup 40}CaCa and {sup 48}Ca, in the energy region between 5 and 10 MeV, are studied within the second random phase approximation (RPA) with Skyrme interaction. Standard RPA models do not usually predict any presence of strength in this energy region, while experimentally a significant amount of strength is found. The inclusion of the 2 particle -2 hole configurations allows to obtain a description in a rather good agreement with the experimental data. The properties of the most collective state are analyzed in terms of its 1 particle -1 hole nature and its transition densities.},
doi = {10.1063/1.4764236},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1491,
place = {United States},
year = {2012},
month = {10}
}