l - th / 9 40 70 11 v 1 6 J ul 1 99 4 Soft dipole mode in 11 Li and three body continuum
نویسنده
چکیده
Properties of the neutron rich 11Li nucleus are calculated in the framework of the cluster model 9Li +n + n. The formalism of the harmonic oscillator representation is used for the description of bound and continuum spectrum states in the three-bodydemocratic-decay approximation. It is shown that this approach allows one to take into account adequately the long asymptotic tail of the 11Li wave function (neutron halo) and to reproduce correctly the binding energy, radius and 11Li electromagnetic dissociation cross-section on target nuclei. The shape and the energy position of the B(E1) peak corresponding to the soft dipole mode are also in agreement with experiment.
منابع مشابه
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تاریخ انتشار 1994