Effect of isovector-scalar meson on neutron star matter in strong magnetic fields
arXiv:nucl-th/0508065 · doi:10.1088/0954-3899/32/1/005
Abstract
We study the effects of isovector-scalar meson on the equation of state (EOS) of neutron star matter in strong magnetic fields. The EOS of neutron-star matter and nucleon effective masses are calculated in the framework of Lagrangian field theory, which is solved within the mean-field approximation. From the numerical results one can find that the -field leads to a remarkable splitting of proton and neutron effective masses. The strength of -field decreases with the increasing of the magnetic field and is little at ultrastrong field. The proton effective mass is highly influenced by magnetic fields, while the effect of magnetic fields on the neutron effective mass is negligible. The EOS turns out to be stiffer at G but becomes softer at stronger magnetic field after including the -field. The AMM terms can affect the system merely at ultrastrong magnetic field(G). In the range of G -- G the properties of neutron-star matter are found to be similar with those without magnetic fields.
arXiv comment26 pages, 9 figures
References in corpus (16)
- Hyperon-rich Matter in Neutron Stars
- Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
- The Equation of State of Neutron-Star Matter in Strong Magnetic Fields
- Effects of Strong Magnetic Fields on Neutron Star Structure
- Asymmetric nuclear matter:the role of the isovector scalar channel
- Microscopic determination of the nuclear incompressibility within the non-relativistic framework
- A microscopic estimate of the nuclear matter compressibility and symmetry energy in relativistic mean-field models
- Dense nuclear matter in a strong magnetic field
- Nuclear Matter in Relativistic Mean Field Theory with Isovector Scalar Meson
- ASCA Discovery of an X-ray Pulsar in the Error Box of SGR1900+14
- Constraining the neutron-proton effective mass splitting in neutron-rich matter
- Bumpy Spin-Down of Anomalous X-Ray Pulsars: The Link with Magnetars
- Implications of the Muon Anomalous Magnetic Moment for Supersymmetry
- Updated Implications of the Muon Anomalous Magnetic Moment for Supersymmetry
- Neutron star composition in strong magnetic fields
- Nuclear incompressibility in the quasilocal density functional theory
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