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Title: Neutron-neutron correlation in the halo dissociation of light exotic nuclei

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. Unidade Diferenciada de Itapeva, Universidade Estadual Paulista, 18409-010 Itapeva (Brazil)
  2. Departamento de Fisica, Instituto Tecnologico de Aeronautica, Centro Tecnico Aeroespacial, 12228-900 Sao Jose dos Campos (Brazil)
  3. Instituto de Fisica Teorica, Universidade Estadual Paulista, 01405-900 Sao Paulo (Brazil)
Publication Date:
OSTI Identifier:
20698805
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 72; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.72.011601; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BERYLLIUM 14; CORRELATION FUNCTIONS; CORRELATIONS; DISSOCIATION; FINAL-STATE INTERACTIONS; HELIUM 6; LITHIUM 11; MEV RANGE; NEUTRONS; NUCLEAR HALOS; NUCLEAR STRUCTURE; OPTICAL MODELS; SINGLE-PARTICLE MODEL

Citation Formats

Yamashita, M T, Frederico, T, and Tomio, Lauro. Neutron-neutron correlation in the halo dissociation of light exotic nuclei. United States: N. p., 2005. Web. doi:10.1103/PhysRevC.72.011601.
Yamashita, M T, Frederico, T, & Tomio, Lauro. Neutron-neutron correlation in the halo dissociation of light exotic nuclei. United States. https://doi.org/10.1103/PhysRevC.72.011601
Yamashita, M T, Frederico, T, and Tomio, Lauro. 2005. "Neutron-neutron correlation in the halo dissociation of light exotic nuclei". United States. https://doi.org/10.1103/PhysRevC.72.011601.
@article{osti_20698805,
title = {Neutron-neutron correlation in the halo dissociation of light exotic nuclei},
author = {Yamashita, M T and Frederico, T and Tomio, Lauro},
abstractNote = {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.},
doi = {10.1103/PhysRevC.72.011601},
url = {https://www.osti.gov/biblio/20698805}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 1,
volume = 72,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2005},
month = {Fri Jul 01 00:00:00 EDT 2005}
}