Bibliographic Details
| Title: |
Spin-flip M1 giant resonance as a challenge for Skyrme forces |
| Authors: |
Nesterenko, V. O., Kvasil, J., Vesely, P., Kleinig, W., Reinhard, P. -G., Ponomarev, V. Yu. |
| Source: |
J. Phys. G. , v.37, n.6, pp. 064034(11), (2010) |
| Publication Year: |
2010 |
| Collection: |
Nuclear Theory |
| Subject Terms: |
Nuclear Theory |
| More Details: |
Despite a great success of the Skyrme mean-field approach in exploration of nuclear dynamics, it seems to fail in description of the spin-flip M1 giant resonance. The results for different Skyrme parameterizations are contradictory and poorly agree with experiment. In particular, there is no parameterization which simultaneously describes the one-peak gross structure of M1 strength in doubly magic nuclei and two-peak structure in heavy deformed nuclei. The reason of this mismatch could lie in an unsatisfactory treatment of spin correlations and spin-orbit interaction. We discuss the present status of the problem and possible ways of its solution. In particular, we inspect i) the interplay of the collective shift and spin-orbit splitting, ii) the isovector M1 response versus isospin-mixed responses, and iii) the role of tensor and isovector spin-orbit interaction.
Comment: 8 pages, 5 figures, to be published in J. Phys. G, special issue on Open Problems in Nuclear Structure Theory (OPeNST) |
| Document Type: |
Working Paper |
| DOI: |
10.1088/0954-3899/37/6/064034 |
| Access URL: |
http://arxiv.org/abs/1001.3965 |
| Accession Number: |
edsarx.1001.3965 |
| Database: |
arXiv |
