Title: Deformation Effect on the Center-of-Mass Correction Energy in Nuclei Ranging from Oxygen to Calcium
Author(s): ZHAO Peng-Wei (赵鹏巍), SUN Bao-Yuan (孙保元), and MENG Jie (孟杰)
Source: Chinese Physics Letters
Volume: 26 Issue: 11 Page: 112102 Published: November 2009
KeyWords Plus: GROUND-STATE PROPERTIES; MEAN-FIELD-THEORY; FINITE NUCLEI
History: Received 15 June 2009
Abstract: The microscopic c. m. correction energies for nuclei ranging from oxygen to calcium are systematically calculated by both spherical and axially deformed relativistic mean-field (RMF) models with the effective interaction PK1. The microscopic c. m. correction energies strongly depend on the isospin as well as deformation and deviate from the phenomenological ones. The deformation effect is discussed in detail by comparing the deformed with the spherical RMF calculation. It is found that the direct and exchange terms of the c. m. correction energies are strongly correlated with the density distribution of nuclei and are suppressed in the deformed case.
Figure: Microscopic c.m. correction energies (solid lines) of nuclei ranging from Oxygen to Calcium in the spherical (a) and axially deformed (b) RMF calculations with the effective interaction PK1, in comparison with two phenomenological results (dashed lines). The solid lines from the left to the right respectively correspond to the isotopic chains from oxygen to calcium.
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