Relativistic Hartree-Bogoliubov Theory with Finite Range Pairing Forces in Coordinate Space: Neutron Halo in Light Nuclei

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.3841· OSTI ID:553111

Poeschl, W; Vretenar, D; Lalazissis, G A; Ring, P ^[1]

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1. Physics Department, Technische Universitaet Muenchen, D-85748 Garching (Germany)

The relativistic Hartree Bogoliubov model is applied in the self-consistent mean-field approximation to the description of the neutron halo in the mass region above the s-d shell. Pairing correlations and the coupling to particle continuum states are described by finite range two-body forces. Finite element methods are used in the coordinate space discretization of the coupled system of Dirac-Hartree-Bogoliubov integro-differential eigenvalue equations, and Klein-Gordon equations for the meson fields. Calculations are performed for the isotopic chains of Ne and C nuclei. We find evidence for the occurrence of neutron halo in heavier Ne isotopes. The properties of the 1f-2p orbitals near the Fermi level and the neutron pairing interaction play a crucial role in the formation of the halo. Our calculations display no evidence for the neutron halo phenomenon in C isotopes. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 553111
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CARBON ISOTOPES
EIGENVALUES
FINITE ELEMENT METHOD
HARTREE-FOCK-BOGOLYUBOV THEORY
KLEIN-GORDON EQUATION
MEAN-FIELD THEORY
MESONS
NEON ISOTOPES
NEUTRONS
NUCLEAR HALOS
PAIRING INTERACTIONS
RELATIVISTIC RANGE
SELF-CONSISTENT FIELD