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The Linear Crust of Neutron Stars in Relativistic Mean Field Approach

Abstract : The microscopic properties and superfluidity of the inner crust in neutron stars are investigated in the framework of the relativistic mean field (RMF) model and BCS theory. The Wigner-Seitz(W-S) cell of inner crust is composed of neutron-rich nuclei immersed in a sea of dilute, homogenous neutron gas. The pairing properties of nucleons in the W-S cells are treated in BCS theory with Gogny interaction. In this work, we emphasize on the choice of the boundary conditions in the RMF approach and superfluidity of the inner crust. Three kinds of boundary conditions are suggested. The properties of the W-S cells with the three kinds of boundary conditions are investigated. The neutron density distributions in the RMF and Hartree-Fock-Bogoliubov (HFB) models are compared.
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http://hal.in2p3.fr/in2p3-00356660
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Submitted on : Friday, January 30, 2009 - 2:57:55 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:14 PM

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J.G. Cao, Z.Y. Ma, N. van Giai. The Linear Crust of Neutron Stars in Relativistic Mean Field Approach. International Workshop on Nuclear Dynamics in Heavy-Ion Reactions and Neutron Stars, Jul 2007, Beijing, China. pp.1765 - 1773, ⟨10.1142/S0218301308010763⟩. ⟨in2p3-00356660⟩

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