Chin. Phys. Lett.  2005, Vol. 22 Issue (9): 2207-2210    DOI:
Original Articles |
Charge Density of 23,24O with Isoscalar--Isovector Coupling Terms
JIANG Wei-Zhou
1Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 2Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800
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JIANG Wei-Zhou 2005 Chin. Phys. Lett. 22 2207-2210
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Abstract The nonlinear isoscalar--isovector terms which are used to simulate the density dependence of the symmetry energy are considered in the relativistic mean field model. The charge density distributions of 23,24O are investigated by considering the contribution from the isoscalar--isovector couplings. Contrarily to the uncertainty of the neutron radius of 208Pb, a considerable uncertainty exists for the charge radii of 23,24O. The data-to-data correlation between the neutron thickness of 208Pb and that of 23,24O is enhanced by the inclusion of the ρNN tensor coupling. This enhancement is closely related to the structural factor, the 2s1/2 occupation of the out-layer neutrons.

Keywords: 21.10.Gv      21.60.-n      27.30.+t      27.80.+w     
Published: 01 September 2005
PACS:  21.10.Gv (Nucleon distributions and halo features)  
  21.60.-n (Nuclear structure models and methods)  
  27.30.+t (20 ≤ A ≤ 38)  
  27.80.+w (190 ≤ A ≤ 219)  
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