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Microscopic cluster study of the 15,17,19 C isotopes

โœ Scribed by P. Descouvemont

Book ID
104333587
Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
158 KB
Volume
675
Category
Article
ISSN
0375-9474

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โœฆ Synopsis

The 15,17,19 C neutron-rich isotopes are investigated with the Generator Coordinate Method, involving 14,16,18 C + n configurations. Core excitations are taken into account and are shown to play an important role for several states. The 15 C nucleus is used as a test case. Analysis of spectroscopic properties provides a 1/2 + assignment for the 19 C ground state. For 17 C, both 1/2 + and 3/2 + spins are possible. The theoretical 19 C Coulomb photodissociation cross section is in good agreement with experiment. We suggest that a similar experiment with 17 C would provide valuable information about the spin. An exploratory study of 21 C shows that this nucleus could be particle stable with a spin 1/2 + .

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Microscopic study of ฮฑ clustering in the
Microscopic study of ฮฑ clustering in the 9,10,11Be isotopes
โœ P. Descouvemont ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 198 KB

The 9,10,11 Be nuclei are described in a microscopic multicluster model involving ฮฑ + ฮฑ + n, ฮฑ + ฮฑ + n + n and ฮฑ + ฮฑ + n + n + n configurations, respectively. The effect of ฮฑ clustering is shown to decrease from 9 Be to 11 Be. In 9 Be, we find 1/2 + , 1/2 -and 3/2 -bands which are well supported by