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Phys. Rev. C 56, 250 - 256 (1997)

Reaction cross sections and radii for f-p shell exotic neutron-rich nuclei

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I. Licot1, N. Added1, N. Carlin1, G. M. Crawley2,3, S. Danczyk2, J. Finck4, D. Hirata7, H. Laurent2, D. J. Morrissey2,8, M. M. de Moura1, H. R. Schelin5, J. Stasko2, M. Steiner2, A. A. P. Suaide1, A. Szanto de Toledo1, E. M. Szanto1, M. Thoennessen2,3, and J. A. Winger6
1Instituto de Física, Universidade de São Paulo, Departamento de Física Nuclear, Laboratorio Pelletron, Caixa Postal 66318, 05315-970, São Paulo - SP, Brazil
2National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
3 Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
4Department of Physics, Central Michigan University, Mt Pleasant, Michigan 48859
5Centro Federal de Educação Tecnológica CEFET, 80230-901, Curitiba - PR, Brazil
6Department of Physics and Astronomy, Mississipi State University, Mississipi State, Mississipi 39762
7Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-01, Japan
8Department of Chemistry, Michigan State University, East Lansing, Michigan 48824

Received 20 November 1996

Reaction cross sections have been measured at energies ranging from 50 to 70 MeV/nucleon for a variety of exotic neutron rich isotopes of Ar, K, Ca, and Sc. A method where Si detectors are used also as targets has been utilized for the measurements. The strong absorption radii r02 have been determined and compared to the results of Glauber-type calculations which used density distributions extracted from the relativistic mean field theory. The isospin dependence of the radii was investigated and a trend similar to the one for lighter nuclei has been observed. The possible existence of halo or skin nuclei has also been addressed.


©1997 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.56.250
DOI: 10.1103/PhysRevC.56.250
PACS: 25.60.Dz, 21.10.Gv, 24.10.Ht, 27.40.+z

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