Bibliographic Details
| Title: |
PROGRESS IN THE STUDY OF THE γ-DECAY OF THE GIANT DIPOLE RESONANCE IN HOT NUCLEI. |
| Authors: |
BRACCO, A.1, CAMERA, F.1, WIELAND, O.1 oliver.wieland@mi.infn.it, ORMAND, W. E.2 nuclear.structure@mi.infn.it |
| Source: |
Modern Physics Letters A. 10/30/2007, Vol. 22 Issue 33, p2479-2492. 14p. 1 Diagram, 1 Chart, 7 Graphs. |
| Subjects: |
Giant multipole resonance, Dipole moments, Evaporative power, Thermodynamics, Compound nucleus, Scientific method |
| Abstract: |
The problem of the damping of the Giant Dipole Resonance (GDR) at finite temperature at T>2 MeV is discussed here. The experimental results are based on fusion evaporation reactions. The most recent results on the mass region A = 132 (Ce isotopes) obtained in exclusive measurements are compared with the existing results on the A = 110–120 region (Sn isotopes). The comparison with the theoretical predictions based on thermal shape fluctuations is also discussed. The GDR width is found to increase also in the region T>2 MeV and this is accounted by the combined effect of the increase of the compound nucleus width (smaller lifetime) and to the increase of the average deformation of the nucleus. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
