May 17 – 22, 2021
US/Eastern timezone

Heavy-quark effects on cold quark matter and self-bound stars

May 21, 2021, 10:10 AM
Room C (Zoom)

Room C


zoom co-host: Zhongling Ji
Theory talk Open and New (IV)


José C. Jiménez


The heavy-quark effects on the equation of state for cold and dense quark matter are obtained from perturbative QCD, yielding observables parametrized only by the renormalization scale. In particular, we investigate the thermodynamics of charm quark matter under the constraints of β equilibrium and electric charge neutrality in a region of densities where perturbative QCD is, in principle, much more reliable. Finally, we analyze the stability of charm stars, which might be realized as a new branch of ultradense hybrid compact stars, and find that such self-bound stars are unstable under radial oscillations.

Primary author


Eduardo Fraga (Federal University of Rio de Janeiro)

Presentation materials