TEMPERATURE-DEPENDENCE OF THE GIANT-DIPOLE RESONANCE WIDTH IN PB-208

Authors
RAMAKRISHNAN E AZHARI A BEENE JR CHARITY RJ HALBERT ML HUA PF KRYGER RA MUELLER PE PFAFF R SARANTITES DG SOBOTKA LG THOENNESSEN M VANBUREN G VARNER RL YOKOYAMA S
Citation
E. Ramakrishnan et al., TEMPERATURE-DEPENDENCE OF THE GIANT-DIPOLE RESONANCE WIDTH IN PB-208, Physics letters. Section B, 383(3), 1996, pp. 252-257
Citations number
34
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
383
Issue
3
Year of publication
1996
Pages
252 - 257
Database
ISI
SICI code
0370-2693(1996)383:3<252:TOTGRW>2.0.ZU;2-E
Abstract
The evolution of the giant dipole resonance (GDR) in hot Pb-208 nuclei was studied by measuring high energy gamma-rays from the decay of the resonance built on excited states. Nuclei in the excitation energy ra nge of 40-110 MeV were populated by inelastic scattering of 40 MeV/nuc leon alpha-particles. The GDR width was observed to increase systemati cally from 4 MeV at the ground state to similar to 8 MeV at the highes t excitation energy.