Speaker
Furong Xu
Description
We start from a realistic nuclear force (N3LO [1] or JISP16
[2]), and use the similarity renormalization group (SRG) to
renormalize the realistic nuclear force. With the softened
NN force, we first perform the Hartree-Fock (HF)
calculation, and then take the HF solution as the reference
and basis for further corrections to the solution of the
many-body system. The many-body perturbation theory (MBPT)
[3] has been employed for the correction calculations.
Corrections up to the third order in energy and up to second
order in radius have been considered. As preliminary
investigations, we have calculated 4He and 16O, obtaining
quite good converged results in their binding energies and
radii. We thank J. Vary for providing the JISP16 interaction
and useful discussions. [1] D.R. Entem and R. Machleidt,
Phys. Rev. C 68, 041001 (32003); [2] A.M. Shirokov, A.I.
Mazur, S/A. Zaytsev, J.P. Vary and T.A. Weber, Phys. Rev. C
70, 044005 (2004); [3] I. Shavitt and R.J. Bartlett,
Many-body methods in Chemistry and physics: MBPT and
coupled-cluster theory (2009).
