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arXiv · 1210.5010

Crucial test for covariant density functional theory with new and accurate mass measurements from Sn to Pa

P. W. Zhao·L. S. Song·B. Sun·H. Geissel·J. Meng
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Abstract

The covariant density functional theory with the point-coupling interaction PC-PK1 is compared with new and accurate experimental masses in the element range from 50 to 91. The experimental data are from a mass measurement performed with the storage ring mass spectrometry at GSI [Chen et al., Nucl. Phys. A 882, 71 (2012)]. Although the microscopic theory contains only 11 parameters, it agrees well with the experimental data. The comparison is characterized by a rms deviation of 0.859 MeV. For even-even nuclei, the theory agrees within about 600 keV. Larger deviations are observed in this comparison for the odd-A and odd-odd nuclei. Improvements and possible reasons for the deviations are discussed in this contribution as well.

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P. W. Zhao, L. S. Song, B. Sun, H. Geissel, J. Meng. 2012-12-31. Crucial test for covariant density functional theory with new and accurate mass measurements from Sn to Pa. https://doi.org/10.1103/physrevc.86.064324

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