5 papers
Semi-analytic bounds on axion-like-particle supernovae emission
Ana Luisa Foguel, Eduardo S. Fraga
Core-collapse supernovae provide natural laboratories for the production of new light particles. In particular, axion-like particles (ALPs) can be constrained via SN1987A cooling a…
Hot and dense pQCD in a very strong magnetic background
Eduardo S. Fraga, Letícia F. Palhares, Tulio E. Restrepo
We compute the pressure, chiral condensate and strange quark number susceptibility from perturbative QCD up to two-loop order at finite temperature and very high magnetic fields wi…
Cooling of quark stars from perturbative QCD
Úrsula Fonseca, Eduardo S. Fraga
We investigate the thermal evolution of quark stars with and without a hadronic crust using an equation of state derived from perturbative QCD that incorporates the running of the…
Susceptibilities and Taylor coefficients of magnetic QCD from perturbation theory
Eduardo S. Fraga, Letícia F. Palhares, Tulio E. Restrepo
We compute the coefficients and of the Taylor expansion for the pressure in powers of in the presence of a large magnetic field within perturbative QC…
Chiral symmetry breaking and pion condensation in the early universe
Osvaldo Ferreira, Eduardo S. Fraga, Maurício Hippert +1
We determine the possible trajectories the universe may have followed in the QCD phase diagram during the QCD epoch. We focus on the roles of chiral symmetry breaking and pion cond…