High Order Isospin-dependent Nucleon-ω-ρ Coupling Correction in Relativistic Mean Field Theory
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Graphical Abstract
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Abstract
The sensitivity of the neutron skin thickness S in ^208Pb to the new addition of the high order isospin-dependent nucleon-ω-ρ coupling term in the relativistic mean field model is studied. Calculations show that the high order isospin-dependent nucleon-ω-ρ coupling term can further soften the symmetry energy, and thus further decrease the neutron radius of ^208Pb without affecting other ground-state observables
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