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Research PapersNo Access

A DOORWAY TO BORROMEAN HALO NUCLEI: THE SAMBA CONFIGURATION

M. T. YAMASHITA

Universidade Estadual Paulista, CEP 18409-010 Itapeva, SP, Brazil

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,

Departamento de Física, Instituto Tecnológico de Aeronáutica, Centro Técnico Aeroespacial, 12228-900 São José dos Campos, Brazil

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, and

Instituto de Física, Universidade de São Paulo, C.P. 66318, CEP 05315-970 São Paulo, Brazil

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https://doi.org/10.1142/S0217732306020056Cited by:7 (Source: Crossref)

Abstract

We exploit the possibility of new configurations in three-body halo nuclei, Samba type (the neutron-core form a bound system) as a doorway to Borromean systems. The nuclei ¹²Be, ¹⁵B, ²³N and ²⁷F are of such nature, in particular ²³N with a half-life of 37.7 s and a halo radius of 6.07 fm is an excellent example of Samba-halo configuration. The fusion below the barrier of the Samba halo nuclei with heavy targets could reveal the so far elusive enhancement and a dominance of one-neutron over two-neutron transfers, in contrast to what was found recently for the Borromean halo nucleus ⁶He+²³⁸U.

Keywords:

PACS: 25.70.Jj, 25.70.Mn, 24.10.Eq, 21.60.-n

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Vol. 21, No. 22

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History

Received 29 December 2005

Revised 2 February 2006

Keywords