Three-body model calculations for 16C nucleus
Abstract
We apply a three-body model consisting of two valence neutrons and the core nucleus 14C in order to investigate the ground state properties and the electronic quadrupole transition of the 16C nucleus. The discretized continuum spectrum within a large box is taken into account by using a single-particle basis obtained from a Woods-Saxon potential. The calculated B(E2) value from the first 2+ state to the ground state shows good agreement with the observed data with the core polarization charge which reproduces the experimental B(E2) value for 15C. We also show that the present calculation well accounts for the longitudinal momentum distribution of 15C fragment from the breakup of 16C nucleus. We point out that the dominant (d5/2)2 configuration in the ground state of 16C plays a crucial role for these agreement.
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