2020/10/13 by Vivek Baruah Thapa, Monika Sinha, Jia Jie Li +2 · 30 citations
Physics and Astronomy · #Covariant transformation #Equation of state #Field (mathematics) #High-Energy Particle Collisions Research #Hyperon #Magnetic field #Mean field theory #Neutron star #Nuclear matter #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Strangeness #astro-ph.HE #hep-ph #nucl-th
paper · pdf · doi:10.3390/particles3040043
published in Particles 3(4), 660-675 (Multidisciplinary Digital Publishing Institute) · 16 pages, 8 figures, Accepted in journal "Particles", Corrected some typos. Matches with published version
openalex created_date 2020/10/08 · openalex publication_date 2020/10/13 · arxiv created 2020/10/16 · arxiv updated 2020/11/16 · openalex updated_date 2026/08/05
We construct a new equation of state for the baryonic matter under an intense magnetic field within the framework of covariant density functional theory. The composition of matter includes hyperons as well as Δ-resonances. The extension of the nucleonic functional to the hypernuclear sector is constrained by the experimental data on Λ and Ξ-hypernuclei. We find that the equation of state stiffens with the inclusion of the magnetic field, which increases the maximum mass of neutron star compared to the non-magnetic case. In addition, the strangeness fraction in the matter is enhanced. Several observables, like the Dirac effective mass, particle abundances, etc. show typical oscillatory behavior as a function of the magnetic field and/or density which is traced back to the occupation pattern of Landau levels.