Neutron-neutron correlation in the halo dissociation of light exotic nuclei
- Unidade Diferenciada de Itapeva, Universidade Estadual Paulista, 18409-010 Itapeva (Brazil)
- Departamento de Fisica, Instituto Tecnologico de Aeronautica, Centro Tecnico Aeroespacial, 12228-900 Sao Jose dos Campos (Brazil)
- Instituto de Fisica Teorica, Universidade Estadual Paulista, 01405-900 Sao Paulo (Brazil)
We present model results for the two-halo-neutron correlation functions, C{sub nn}, for the dissociation process of light exotic nuclei modelled as two neutrons and a core. A minimum is predicted for C{sub nn} as a function of the relative momentum of the two neutrons, p{sub nn}, due to the coherence of the neutrons in the halo and final state interaction. Studying the systems {sup 14}Be, {sup 11}Li, and {sup 6}He within this model, we show that the numerical asymptotic limit, C{sub nn}{yields}1, occurs only for p{sub nn} > or approx. 400 MeV/c, while such limit is reached for much lower values of p{sub nn} in an independent particle model as the one used in the analysis of recent experimental data. Our model is consistent with data once the experimental correlation function is appropriately normalized.
- OSTI ID:
- 20698805
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 72, Issue 1; Other Information: DOI: 10.1103/PhysRevC.72.011601; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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