Temperature dependence of the giant dipole resonance in {sup 120}Sn

Journal Article · Tue Sep 01 04:00:00 EDT 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.58.R1377· OSTI ID:641697

Gervais, G; Thoennessen, M ^[1]; Ormand, W E ^[2]

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1. National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, 48824-1321 (United States)
2. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana, 70803-4001 (United States)

Complete statistical model calculations including temperature- and spin-dependent theoretical strength functions of the giant dipole resonance (GDR) have been performed for the decay of excited {sup 120}Sn for the first time. Previous analyses of GDR data with theoretical models compared the centroid and full width at half maximum of the theoretical strength functions with the extracted GDR parameters. In the new approach presented, the entire shape of the strength functions is considered and the theoretical spectra obtained can be directly compared with the experiment. This analysis does not rely on the accuracy of extracting the GDR parameters and/or the nuclear temperature of one data point. The nature of the temperature dependence of the GDR in the hot {sup 120}Sn nucleus within the thermal fluctuation and collisional damping model is discussed in this new perspective. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 641697
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 58; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
EXCITED STATES
GIANT RESONANCE
STATISTICAL MODELS
TEMPERATURE DEPENDENCE
TIN 120