Neutron-neutron correlations in light exotic nuclei
- Instituto de Fisica Teorica, UNESP, 01405-900, Sao Paulo, SP (Brazil)
- Laboratorio do Acelerador Linear, Instituto de Fisica, Universidade de Sao Paulo, CEP, 05315-970, Sao Paulo (Brazil)
- Dep. de Fisica, Instituto Tecnologico de Aeronautica, Centro Tecnico Aeroespacial, 12228-900, Sao Jose dos Campos (Brazil)
For light exotic nuclei modeled as two neutrons n and a core A, we report results for the two-neutron correlation functions and also for the mean-square radii, considering a universal scaling function. The results of our calculations for the neutron-neutron correlation functions are qualitatively consistent with recent data obtained for 11Li and 14Be nuclei. The root-mean-square distance in the halo of such nuclei are also consistent with data, which means that the neutrons of the halo have a large probability to be found outside the interaction range. Therefore the low-energy properties of these halo neutrons are, to a large extend, model independent as long as few physical input scales are fixed. The model is restricted to s-wave subsystems, with small energies for the bound or virtual states. For the radii we are also shown results for the 6He and 20C. All the interaction effects, as higher partial wave in the interaction and/or Pauli blocking effect are, to some extend, included in our model, as long as the three-body binding energy is supplied.
- OSTI ID:
- 20722312
- Journal Information:
- AIP Conference Proceedings, Vol. 768, Issue 1; Conference: 19. European conference on few-body problems in physics, Groningen (Netherlands), 23-27 Aug 2004; Other Information: DOI: 10.1063/1.1932979; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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