Halo-nucleus structure obtained from quasi-free scattering

We study systematically the average property of fragmentation reaction and momentum dissipation induced by halo-nuclei in intermediate energy heavy ion collisions for different colliding systems and different beam energies within the isospin dependent quantum molecular dynamics model (IQMD). This study is based on the extended halo-nucleus density distributions, which indicates the average property of loosely inner halo nucleus structure, because the interaction potential and in-medium nucleon-nucleon cross section in IQMD model depend on the density distribution. In order to study the average properties of fragmentation reaction and momentum dissipation induced by halo-nuclei we also compare the results for the halo-nuclear colliding systems with those for corresponding stable colliding systems with same mass under the same incident channel condition. We find that the effect of extended halo density distribution on the fragment multiplicity and nuclear stopping (momentum dissipation) are important for the different beam energies and different colliding systems. For example the extended halo density distributions increase the fragment multiplicity but decrease the nuclear stopping for all of incident channel conditions in this paper.

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Coulomb dissociation of a halo nucleus 11Be and direct breakup mechanism

Nuclear Physics A ◽

10.1016/0375-9474(95)00103-8 ◽

1995 ◽

Vol 588 (1) ◽

pp. c81-c84 ◽

Cited By ~ 4

Author(s):

T. Nakamura ◽

S. Shimoura ◽

T. Kobayashi ◽

T. Teranishi ◽

K. Abe ◽

...

Keyword(s):

Halo Nucleus ◽

Coulomb Dissociation ◽

Breakup Mechanism

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Impact of uncertainties of unbound 10Li on the ground state of two-neutron halo 11Li

SciPost Physics Proceedings ◽

10.21468/scipostphysproc.3.007 ◽

2020 ◽

Author(s):

Jagit Singh ◽

Wataru Horiuchi

Keyword(s):

Ground State ◽

Halo Nucleus ◽

Transfer Reaction ◽

Neutron Halo ◽

Structure Model ◽

Continuum States ◽

Normal Core ◽

Configuration Mixing ◽

Three Body ◽

Neutron Transfer Reaction

Recently, the energy spectrum of \boldsymbol{^{10}}10Li was measured upto \boldsymbol{4.6}4.6 MeV, via one-neutron transfer reaction \boldsymbol{d(^{9}\textrm{Li},~p)^{10}\textrm{Li}}𝐝(9Li,𝐩)10Li. Considering the ambiguities on the \boldsymbol{^{10}}10Li continuum spectrum with reference to new data, we report the configuration mixing in the ground state of the two-neutron halo nucleus \boldsymbol{^{11}}11Li for two different choices of the \boldsymbol{^{9}{\textrm{Li}}+n}9Li+𝐧 potential. For the present study, we employ a three-body (\boldsymbol{\textrm{core}+n+n}core+𝐧+𝐧) structure model developed for describing the two-neutron halo system by explicit coupling of unbound continuum states of the subsystem (\boldsymbol{\textrm{core}+n}core+𝐧), and discuss the two-neutron correlations in the ground state of \boldsymbol{^{11}}11Li.

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