Chin. Phys. Lett.  2006, Vol. 23 Issue (7): 1719-1722    DOI:
Original Articles |
Ground-State Properties of Ca Isotopes and the Density Dependence of the Symmetry Energy
LIANG Jun1,2;MA Zhong-Yu1,3;CHEN Bao-Qiu1
1China Institute of Atomic Energy, Beijing 102413 2Department of Physics, University of Technology of Taiyuan, Taiyuan 030024 3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000
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LIANG Jun, MA Zhong-Yu, CHEN Bao-Qiu 2006 Chin. Phys. Lett. 23 1719-1722
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Abstract A relativistic mean field model is used to study the ground-state properties of neutron-rich nuclei in Ca isotopes. An additional isoscalar and isovector nonlinear coupling has been introduced in the relativistic mean field model, which could soften the symmetry energy, while keep the agreement with the experimental data. The sensitivity of proton and neutron density distributions and single particle states in Ca isotopes to the additional isoscalar--isovector nonlinear coupling term is investigated. We found that the binding energies, the density distributions of single particle levels are strongly correlated with the density dependence of the symmetric energy in nuclear matter.
Keywords: 21.10.Gv      21.60.-n      21.10.-k      21.10.Dr     
Published: 01 July 2006
PACS:  21.10.Gv (Nucleon distributions and halo features)  
  21.60.-n (Nuclear structure models and methods)  
  21.10.-k (Properties of nuclei; nuclear energy levels)  
  21.10.Dr (Binding energies and masses)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I7/01719
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