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Excitation of 6Li above the breakup threshold in the 6Li + 208Pb system around the Coulomb barrier.
Excitation of 6Li above the breakup threshold in the 6Li + 208Pb system around the Coulomb barrier.
- Source :
- European Physical Journal A -- Hadrons & Nuclei; Dec2003, Vol. 18 Issue 4, p583-587, 5p
- Publication Year :
- 2003
-
Abstract
- The excitation energy above the breakup threshold of the α + d/<superscript>6</superscript>Li system, after the interaction of <superscript>6</superscript>Li nuclei with a <superscript>208</superscript>Pb target, was deduced from the invariant mass of the α + d system. Data were collected with a large-solid-angle detector set-up at four beam energies around the Coulomb barrier. The excitation of the <superscript>6</superscript>Li nucleus above the breakup threshold (1.47 MeV) has a quite similar behavior at each measured beam energy and angle; it is peaked at ∼ 1 MeV above the threshold and shows an exponential decay on the high energy side, which is a clear signature of a direct breakup process. The experimental excitation energies are reproduced both in shape and absolute value by 1) fully quantum-mechanical Coupled-Channel calculations with coupling to discretized-continuum <superscript>6</superscript>Li excitations, 2) semi-classical Coupled-Channel approach, where the relative motion is treated along a classical trajectory. [ABSTRACT FROM AUTHOR]
- Subjects :
- NUCLEAR excitation
COULOMB excitation
NUCLEAR physics
QUANTUM theory
Subjects
Details
- Language :
- English
- ISSN :
- 14346001
- Volume :
- 18
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- European Physical Journal A -- Hadrons & Nuclei
- Publication Type :
- Academic Journal
- Accession number :
- 16708454
- Full Text :
- https://doi.org/10.1140/epja/i2003-10097-y