English

Correlations between the nuclear breathing mode energy and properties of asymmetric nuclear matter

Nuclear Theory 2012-03-27 v2 Solar and Stellar Astrophysics Nuclear Experiment

Abstract

Based on microscopic Hartree-Fock + random phase approximation calculations with Skyrme interactions, we study the correlations between the nuclear breathing mode energy EISGMRE_{ISGMR} and properties of asymmetric nuclear matter with a recently developed analysis method. Our results indicate that the EISGMRE_{ISGMR} of 208^{208}Pb exhibits moderate correlations with the density slope LL of the symmetry energy and the isoscalar nucleon effective mass ms,0m_{s,0}^{\ast} besides a strong dependence on the incompressibility K0K_{0} of symmetric nuclear matter. Using the present empirical values of L=60±30L=60\pm 30 MeV and ms,0=(0.8±0.1)mm_{s,0}^{\ast}=(0.8\pm 0.1)m, we obtain a theoretical uncertainty of about ±16\pm 16 MeV for the extraction of K0K_{0} from the EISGMRE_{ISGMR} of 208^{208}Pb. Furthermore, we find the EISGMRE_{ISGMR} difference between 100^{100}Sn and 132^{132}Sn strongly correlates with LL and thus provides a potentially useful probe of the symmetry energy.

Keywords

Cite

@article{arxiv.1104.5407,
  title  = {Correlations between the nuclear breathing mode energy and properties of asymmetric nuclear matter},
  author = {Lie-Wen Chen and Jian-Zhong Gu},
  journal= {arXiv preprint arXiv:1104.5407},
  year   = {2012}
}

Comments

9 pages, 6 figures. Discussions and references added. Accepted version to appear in JPG