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PROGRESS IN THE STUDY OF THE γ-DECAY OF THE GIANT DIPOLE RESONANCE IN HOT NUCLEI.

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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]
Copyright of Modern Physics Letters A is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: PROGRESS IN THE STUDY OF THE γ-DECAY OF THE GIANT DIPOLE RESONANCE IN HOT NUCLEI.
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  Data: <searchLink fieldCode="AR" term="%22BRACCO%2C+A%2E%22">BRACCO, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22CAMERA%2C+F%2E%22">CAMERA, F.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22WIELAND%2C+O%2E%22">WIELAND, O.</searchLink><relatesTo>1</relatesTo><i> oliver.wieland@mi.infn.it</i><br /><searchLink fieldCode="AR" term="%22ORMAND%2C+W%2E+E%2E%22">ORMAND, W. E.</searchLink><relatesTo>2</relatesTo><i> nuclear.structure@mi.infn.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Modern+Physics+Letters+A%22">Modern Physics Letters A</searchLink>. 10/30/2007, Vol. 22 Issue 33, p2479-2492. 14p. 1 Diagram, 1 Chart, 7 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Giant+multipole+resonance%22">Giant multipole resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Dipole+moments%22">Dipole moments</searchLink><br /><searchLink fieldCode="DE" term="%22Evaporative+power%22">Evaporative power</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Compound+nucleus%22">Compound nucleus</searchLink><br /><searchLink fieldCode="DE" term="%22Scientific+method%22">Scientific method</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: 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]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Modern Physics Letters A is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1142/S0217732307024474
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        Type: general
      – SubjectFull: Dipole moments
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      – SubjectFull: Evaporative power
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      – SubjectFull: Thermodynamics
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      – SubjectFull: Compound nucleus
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      – TitleFull: PROGRESS IN THE STUDY OF THE γ-DECAY OF THE GIANT DIPOLE RESONANCE IN HOT NUCLEI.
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              Text: 10/30/2007
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