What can be learned from binding energy differences about nuclear structure: the example of delta V_{pn}

Details What can be learned from binding energy differences about nuclear structure: the example of delta V_{pn} What can be learned from binding energy differences about nuclear structure: the example of delta V_{pn}

2011-02-09

arxiv.org/abs/1102.1903v1

Phys.Rev.C83:064319,2011

Physics

Nuclear Physics

Nuclear Theory

19 pages and 12 figures

Scientific paper

10.1103/PhysRevC.83.064319

We perform an analysis of a binding energy difference called delta V_{pn}(N,Z) =- 1/4(E(Z,N)-E(Z,N-2)-E(Z-2,N)+ E(Z-2,N-2) in the framework of a realistic nuclear model. Using the angular-momentum and particle-number projected generator coordinate method and the Skyrme interaction SLy4, we analyze the contribution brought to delta V_{pn} by static deformation and dynamic fluctuations around the mean-field ground state. Our method gives a good overall description of delta V_{pn} throughout the chart of nuclei with the exception of the anomaly related to the Wigner energy along the N=Z line. The main conclusions of our analysis are that (i) the structures seen in the systematics of delta V_{pn} throughout the chart of nuclei can be easily explained combining a smooth background related to the symmetry energy and correlation energies due to deformation and collective fluctuations; (ii) the characteristic pattern of delta V_{pn} around a doubly-magic nucleus is a trivial consequence of the asymmetric definition of delta V_{pn}, and not due to a the different structure of these nuclei; (iii) delta V_{pn} does not provide a very reliable indicator for structural changes; (iv) \delta V_{pn} does not provide a reliable measure of the proton-neutron interaction in the nuclear EDF, neither of that between the last filled orbits, nor of the one summed over all orbits; (v) delta V_{pn} does not provide a conclusive benchmark for nuclear EDF methods that is superior or complementary to other mass filters such as two-nucleon separation energies or Q values.

Affiliated with

Also associated with

No associations

Rating

What can be learned from binding energy differences about nuclear structure: the example of delta V_{pn} 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 What can be learned from binding energy differences about nuclear structure: the example of delta V_{pn}, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What can be learned from binding energy differences about nuclear structure: the example of delta V_{pn} will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-650422