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Nuclear Theory·nucl-th

Thursday·January 3, 2019

5 papers—2 primary·3 cross-listed

All5Primary2Cross-lists3
  1. 01

    [Submitted on 1 Jan 2019]

    Comments on the chemical and kinetic equilibration in heavy ion collisions

    E.Shuryak🇺🇸

    I argue that perturbative scattering of quarks and gluons are incompatible with lattice and heavy ion data on QGP properties. The non-perturbative mechanisms for quasiparticle rescattering and quark production are briefly discussed, as well as experiments needed to measure matter anisotropy and quark density at early stages of the collisions.

    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
    arXiv:
    1901.00178 [pdf]
    2 citations
  2. 02

    [Submitted on 2 Jan 2019]

    Relativistic fluid dynamics of spin-polarized systems of particles

    Wojciech Florkowski🇵🇱 · Bengt Friman🇩🇪 · Amaresh Jaiswal🇮🇳 · Radoslaw Ryblewski🇵🇱 · Enrico Speranza🇩🇪

    We review basic ingredients of the recently introduced perfect-fluid hydrodynamic equations for particles with spin one-half. For a quasi-realistic setup, first numerical solutions for various hydrodynamic variables including the spin polarization tensor are presented. Our results indicate that the initial spin polarization of the hottest region may play a dominant role in the polarization of particles at freeze-out.

    Comments:
    Presented by Radoslaw Ryblewski at XIII Quark Confinement and the Hadron Spectrum - Confinement 2018, 31 July - 6 August, 2018, Maynooth University, Ireland; 8 pages, 3 figures
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
    arXiv:
    1901.00352 [pdf]
    PoS(2018)·6 citations

Affiliations

first authorsco-authorsvia INSPIRE