Closed form expressions for the partial derivative of the phase shift with respect to wave number k are obtained for a variety of potentials which can have a short range component as well as a long range Coulomb tail. Cut-off potentials, the Woods-Saxon potential, the Yukawa potentials, as well as p
Coulomb excitation of 180Tam and its consequences for a possible s-process production
✍ Scribed by P. von Neumann-Cosel; J. Agramunt-Ros; J. de Boer; R. Calabrese; A. Gadea; M. Gorska; J. Gerl; J. Holoczek; M. Kaspar; I. Kozhoukharov; M. Loewe; H.J. Maier; P.J. Napiorkowsky; I. Peter; P. Reiter; M. Rejmund; A. Richter; H. Schaffner; C. Schlegel; R. Schubart; D. Schwalm; J. Srebrny; S. Wan; M. Würkner; H.J. Wollersheim
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 248 KB
- Volume
- 621
- Category
- Article
- ISSN
- 0375-9474
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✦ Synopsis
Recent Coulomb-activation experiments indicate the presence of a low-lying intermediate state depopulating the long-lived lS°Ta isomer to the radioactive g.s. with considerable conquences on the effective halflife of lS°Ta under s-process conditions. An 'in-beam' Coulomb-excitation experiment searching for the relevant transitions is reported using a 5.6% enriched 18°Ta target and a particle-gamma coincidence setup consisting of five HPGe EUROBALL cluster modules covering about 10% of 4~ solid angle and the NaI Crystal Ball filling the rest. Preliminary analysis indicates Coulomb excited levels in lS°Ta around 700 and 1050 keV.
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