Phase diagram for strongly interacting matter in the presence of a magnetic field using the Polyakov-Nambu-Jona-Lasinio model with magnetic field dependent coupling strengths

no code implementations • 28 Jan 2021 • João Moreira, Pedro Costa, Tulio E. Restrepo

A study of the magnetic field dependence in the range $eB=0-0. 6~\mathrm{GeV}^2$ of the location of these CEPs reveals that the initial one as well as several of the new ones only survive up to a critical magnetic field.

High Energy Physics - Phenomenology

Renormalization group improved pressure for hot and dense quark matter

no code implementations • 20 Jan 2021 • Jean-Loïc Kneur, Marcus Benghi Pinto, Tulio E. Restrepo

We apply the renormalization group optimized perturbation theory (RGOPT) to evaluate the quark contribution to the QCD pressure at finite temperatures and baryonic densities, at next-to-leading order (NLO).

High Energy Physics - Phenomenology High Energy Physics - Lattice Nuclear Theory

QCD pressure: renormalization group optimized perturbation theory confronts lattice

no code implementations • 6 Jan 2021 • Jean-Loïc Kneur, Marcus Benghi Pinto, Tulio E. Restrepo

The quark contribution to the QCD pressure, $P_q$, is evaluated up to next-to-leading order (NLO) within the renormalization group optimized perturbation theory (RGOPT) resummation approach.

High Energy Physics - Phenomenology High Energy Physics - Lattice High Energy Physics - Theory Nuclear Theory