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NUCLEAR PHYSICS

Deformation Effect on the Center-of-Mass Correction Energy in Nuclei Ranging from Oxygen to Calcium

Zhao Peng-Wei et al 2009 Chinese Phys. Lett. 26 112102 (3pp)   doi: 10.1088/0256-307X/26/11/112102  Help

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Zhao Peng-Wei1, Sun Bao-Yuan1 and Meng Jie1,2,3
1 School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871
2 School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191
3 Department of Physics, University of Stellenbosch, Stellenbosch, South Africa
E-mail: mengj@pku.edu.cn (Meng Jie)

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.

PACS numbers: 21.60.Jz, 21.10.Gv, 24.10.Jv, 27.30.+t, 27.40.+z

Print publication: Issue 11 (November 2009)
Received 15 June 2009

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