Chiral symmetry breaking and confinement effects on dilepton and photon production around $T_c$

Abstract

Production rates of dileptons and photons from the quark-gluon (QGP) phase are calculated taking into account effects of confinement and spontaneous chiral symmetry breaking (χSB) not far from the transition temperature $T_c$. We find that the production rates of dileptons with large momenta and of photons originating from the QGP around $T_c$ are suppressed by the χSB effect. We also discuss to what extent information about details of the chiral transition, such as its characteristic temperature range and the steepness of the crossover, are reflected in these quantities.

15 pages, 11 figures; v2: figures 11 and 12 are added, discussion on comparison with other results is added in summary; v3: Typos in reference 36 are corrected

References in corpus (13)

• The QCD equation of state with dynamical quarks
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• Equation of state and QCD transition at finite temperature
• Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
• A new critical study of photon production in hadronic collisions
• Chiral symmetry breaking with lattice propagators
• Pseudo-Critical Enhancement of Thermal Photons in Relativistic Heavy-Ion Collisions
• Production and Elliptic Flow of Dileptons and Photons in the semi-Quark Gluon Plasma
• Suppression of the Shear Viscosity in a "semi" Quark Gluon Plasma
• The Glasma, Photons and the Implications of Anisotropy
• Polyakov loop and correlator of Polyakov loops at next-to-next-to-leading order
• Thermal photon $v_2$ with slow quark chemical equilibration
• Vector meson spectral function and dilepton production rate in a hot and dense medium within an effective QCD approach

Cited by in corpus (8)

• Polyakov loop modeling for hot QCD
• Hard-core deconfinement and soft-surface delocalization from nuclear to quark matter
• Chiral matrix model of the semi-Quark Gluon Plasma in QCD
• Free energy of a Holonomous Plasma
• Electromagnetic Radiation from QCD Matter: Theory Overview
• Finite temperature sum rules in the vector channel at finite momentum
• Exact vector channel sum rules at finite temperature and their applications to lattice QCD data analysis
• Vector meson spectral function and dilepton rate in the presence of strong entanglement effect between the chiral and the Polyakov loop dynamics