Improved microscopic-macroscopic approach incorporating the effects of continuum states

Details Improved microscopic-macroscopic approach incorporating the effects of continuum states Improved microscopic-macroscopic approach incorporating the effects of continuum states

2010-06-11

arxiv.org/abs/1006.2186v1

Physics

Nuclear Physics

Nuclear Theory

66 pages, 29 figures, 1 table

Scientific paper

The Woods-Saxon-Strutinsky method (the microscopic-macroscopic method) combined with Kruppa's prescription for positive energy levels, which is necessary to treat neutron rich nuclei, is studied to clarify the reason for its success and to propose improvements for its shortcomings. The reason why the plateau condition is met for the Nilsson model but not for the Woods-Saxon model is understood in a new interpretation of the Strutinsky smoothing procedure as a low-pass filter. Essential features of Kruppa's level density is extracted in terms of the Thomas-Fermi approximation modified to describe spectra obtained from diagonalization in truncated oscillator bases. A method is proposed which weakens the dependence on the smoothing width by applying the Strutinsky smoothing only to the deviations from a reference level density. The BCS equations are modified for the Kruppa's spectrum, which is necessary to treat the pairing correlation properly in the presence of continuum. The potential depth is adjusted for the consistency between the microscopic and macroscopic Fermi energies. It is shown, with these improvements, that the microscopic-macroscopic method is now capable to reliably calculate binding energies of nuclei far from stability.

Affiliated with

Also associated with

No associations

Rating

Improved microscopic-macroscopic approach incorporating the effects of continuum states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Improved microscopic-macroscopic approach incorporating the effects of continuum states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved microscopic-macroscopic approach incorporating the effects of continuum states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-76799