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Reaction cross-sections and reduced strong absorption radii of nuclei in the vicinity of closed shells N = 20 and N = 28.
- Source :
-
European Physical Journal A -- Hadrons & Nuclei . Aug2005 Supplement 1, Vol. 25, p223-226. 4p. - Publication Year :
- 2005
-
Abstract
- Energy integrated reaction cross-section measurements of around sixty neutron-rich nuclei covering the region of closed shells N = 20 and N = 28 were performed at intermediate energy (30-65 A . MeV) using direct method. In this experiment, silicon detectors were used as active targets. The reduced strong absorption radii, r02, for 19 new nuclei (27F, 27,30Ne, 33Na, 28, 34-35Mg, 36-38Al, 38-40Si, 41-42P, 42-44S and 45Cl) are deduced for the first time. An additional 60 radii, also measured in this experiment, are compared to results from literature. A new quadratic parametrization is proposed for the nuclear radius as a function of the isospin in the region of closed shells N = 8 and N = 28. According to this parametrization, the skin effect is well reproduced and anomalous behaviour on the radii are observed in 23N, 29Ne, 33Na, 35Mg, 44S, 45Cl and 45Ar nuclei. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NUCLEAR energy
*NEUTRONS
*PARTICLES (Nuclear physics)
*NUCLEAR physics
*PHYSICS
Subjects
Details
- Language :
- English
- ISSN :
- 14346001
- Volume :
- 25
- Database :
- Academic Search Index
- Journal :
- European Physical Journal A -- Hadrons & Nuclei
- Publication Type :
- Academic Journal
- Accession number :
- 18188748
- Full Text :
- https://doi.org/10.1140/epjad/i2005-06-185-x