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Nuclear Theory·nucl-th

Monday·April 5, 2021

5 papers—2 primary·3 cross-listed

All5Primary2Cross-lists3
  1. 03

    [Submitted on 1 Apr 2021] (cross-list from hep-ph)

    Magnetic monopole in a chiral plasma: chiral dyon

    Michael Lublinsky🇮🇱 · Jared Reiten🇺🇸 · Andrey V. Sadofyev🇪🇸

    The placement of a magnetic monopole into an electrically-neutral chiral plasma with a non-zero axial density results in an electric polarization of the matter. The electric current produced by the chiral magnetic effect is balanced by charge diffusion and Ohmic dissipation, which generates a non-trivial charge distribution. In turn, the latter induces a separation of chiralities along the magnetic field of the monopole due to the chiral separation effect. We find the stationary states of such a system, with vanishing total electric current and stationary axial current balanced by the chiral anomaly. In this solution, the monopole becomes "dressed" with an electric charge that is proportional to the averaged chiral density of the matter -- forming a chiral dyon. The interplay between the chiral effects on the one hand, and presence of magnetic field of the monopole on the other, may affect the evolution of the monopole density in the early Universe, contribute to the process of baryogenesis, and can also be instrumental for detection of relic monopoles using chiral materials.

    Comments:
    9 pages, 2 figures. v2: Journal version
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Theory (hep-th); Nuclear Theory (nucl-th)
    arXiv:
    2104.00685 [pdf]
    PRD(2021)·0 citations
  2. 04

    [Submitted on 1 Apr 2021] (cross-list from astro-ph.HE)

    Equation of State table with hyperon and antikaon for supernova and neutron star merger

    Tuhin Malik🇮🇳 · Sarmistha Banik🇮🇳 · Debades Bandyopadhyay🇮🇳

    We develop a new equation of state (EoS) table involving thermal (anti)kaons, Bose-Einstein condensate of mesons and -hyperons for core-collapse supernova and neutron star merger simulations. This EoS table is based on a finite temperature density-dependent relativistic hadron field theory where baryon-baryon interaction is mediated by scalar , vector and mesons, using the parameter set DD2 for nucleons. The repulsive hyperon-hyperon interaction is mediated by an additional strange meson. The EoS for the condensed matter is also calculated within the framework of relativistic mean field model, whereas the low-density, inhomogeneous matter is calculated in the extended Nuclear Statistical Equilibrium model (NSE). The EoS table is generated for a wide range of values of three parameters - baryon density ( to 1 fm), positive charge fraction(0.01 to 0.60) and temperature(0.1 to 158.48 MeV).

    Comments:
    6 figures
    Subjects:
    High Energy Astrophysical Phenomena (astro-ph.HE); Nuclear Theory (nucl-th)
    arXiv:
    2104.00775 [pdf]
    ApJ(2021)·33 citations
  3. 05

    [Submitted on 31 Mar 2021] (cross-list from hep-ph)

    Conformal transformations of conservation equations in spin hydrodynamics

    Rajeev Singh🇵🇱

    We study and analyse the conformal transformations of different conservation laws in the spin hydrodynamics framework.

    Comments:
    6 pages
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics — Theory (hep-th); Nuclear Theory (nucl-th)
    arXiv:
    2104.01009 [pdf]
    Acta Phys.Polon.B(2021)·3 citations

Affiliations

first authorsco-authorsvia INSPIRE