Isospin structure of one- and two-phonon giant dipole resonance excitations

Autor:	B. V. Carlson, S. Cruz-Barrios, A. F. R. de Toledo Piza, Mahir S. Hussein, Carlos A. Bertulani, L. F. Canto
Rok vydání:	1999
Předmět:	Physics Nuclear and High Energy Physics Isovector Weak isospin Condensed matter physics Phonon Nuclear Theory Coulomb excitation Dipole Isospin Atomic physics Nuclear Experiment Ground state Excitation
Zdroj:	Physical Review C. 59:3093-3098
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.59.3093
Popis:	Isospin is included in the description of the Coulomb excitation of multiple giant isovector dipole resonances. In the excitation of even-even nuclei, a relevant portion of the excitation strength is shown to be associated with 1 1 two-phonon states, which tends to be hindered or completely suppressed in calculations in which the isospin degree of freedom is not considered. We find that the excitation cross section is strongly dependent on the ground state isospin. @S0556-2813~99!08105-4#
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bd9e63c20e0d2ce990d8cc7d268f686f https://doi.org/10.1103/physrevc.59.3093 Zobrazit plný text záznamu