Properties of hyperonic matter in strong magnetic fields

Abstract

We study the effects of strong magnetic fields on the properties of hyperonic matter. We employ the relativistic mean field theory, which is known to provide excellent descriptions of nuclear matter and finite nuclei. The two additional hidden-strangeness mesons, ${\sigma }^{\ast }$ and $\varphi$, are taken into account, and some reasonable hyperon potentials are used to constrain the meson-hyperon couplings, which reflect the recent developments in hypernuclear physics. It is found that the effects of strong magnetic fields become significant only for magnetic field strength $B>5\times 10^{18}$ G. The threshold densities of hyperons can be significantly altered by strong magnetic fields. The presence of hyperons makes the equation of state (EOS) softer than that in the case without hyperons, and the softening of the EOS becomes less pronounced with increasing magnetic field strength.

19 pages, 6 figures

References in corpus (33)

• Relativistic Equation of State of Nuclear Matter for Supernova and Neutron Star
• Strange Quark Matter and Compact Stars
• Physics of Strongly Magnetized Neutron Stars
• Hyperon-rich Matter in Neutron Stars
• Phases of dense matter in neutron stars
• The Equation of State of Neutron-Star Matter in Strong Magnetic Fields
• Effects of Strong Magnetic Fields on Neutron Star Structure
• Properties of Strange Hadronic Matter in Bulk and in Finite Systems
• Evidence of Xi hypernuclear production in the ^{12}C(K^-,K^+)^{12}_{Xi}Be reaction
• Dense nuclear matter in a strong magnetic field
• Magnetic Color Flavor Locking Phase in High Density QCD
• Color-flavor locked superconductor in a magnetic field
• Tables of Hyperonic Matter Equation of State for Core-Collapse Supernovae
• Color-Superconducting Gap in the Presence of a Magnetic Field
• Color superconducting matter in a magnetic field
• Effects of Strong Magnetic Fields in Strange Baryonic Matter
• Neutron star properties in the quark-meson coupling model
• Complete relativistic equation of state for neutron stars
• Magnetic Phases in Three-Flavor Color Superconductivity
• Cold ideal equation of state for strongly magnetized neutron-star matter: effects on muon production and pion condensationn
• Influence of the hadronic equation of state on the hadron-quark phase transition in neutron stars
• Hybrid stars in the quark-meson coupling model with superconducting quark matter
• Study of the neutron star structure in strong magnetic fields including the anomalous magnetic moments
• Double-$\Lambda$ hypernuclei in the relativistic mean-field theory
• Magnetic Fields Boosted by Gluon Vortices in Color Superconductivity
• Effect of isovector-scalar meson on neutron star matter in strong magnetic fields
• Chromomagnetic Instability and Induced Magnetic Field in Neutral Two-Flavor Color Superconductivity
• On the uncertainty of hyperon couplings and the electrochemical potential in neutron star matter
• The influence of strength of hyperon-hyperon interactions on neutron star properties
• Quark-meson coupling model for antikaon condensation in neutron star matter with strong magnetic fields
• Neutron star matter in the quark-meson coupling model in strong magnetic fields
• Bose-Einstein condensation in dense nuclear matter and strong magnetic fields
• Warm strange hadronic matter in an effective model with a weak Y-Y interaction

Cited by in corpus (18)

• Equation of State of a Dense and Magnetized Fermion System
• Equation of state for the MCFL phase and its implications for compact star models
• Equation of State for Nucleonic and Hyperonic Neutron Stars with Mass and Radius Constraints
• (In-)Significance of the Anomalous Magnetic Moment of Charged Fermions for the Equation of State of a Magnetized and Dense Medium
• Medium effects of magnetic moments of baryons on neutron stars under strong magnetic fields
• Superfluidity of $\Lambda$ hyperons in neutron stars
• Neutron stars in a perturbative $f(R)$ gravity model with strong magnetic fields
• Warm and dense stellar matter under strong magnetic fields
• Thermodynamics of Neutrons in a Magnetic Field and its Implications for Neutron Stars
• Strange quark matter in strong magnetic fields within a confining model
• Anisotropic magnetized neutron star
• Dense stellar matter with trapped neutrinos under strong magnetic fields
• Neutron matter under strong magnetic fields: a comparison of models
• Magnetic moments of the octet, decuplet, low-lying charm, and low-lying bottom baryons in a nuclear medium
• Impact of strong magnetic fields on the inner crust of neutron stars
• Coexistence of phases in asymmetric nuclear matter under strong magnetic fields
• Neutron stars with Bogoliubov quark-meson coupling model
• New solution to the hyperon puzzle of neutron stars: Quantum many-body effects