Accessibility of color superconducting quark matter phases in heavy-ion collisions - High Energy Physics - PhenomenologyReportar como inadecuado




Accessibility of color superconducting quark matter phases in heavy-ion collisions - High Energy Physics - Phenomenology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We discuss a hybrid equation of state EoS that fulfills constraints formass-radius relationships and cooling of compact stars. The quark matter EoS isobtained from a Polyakov-loop Nambu-Jona-Lasinio PNJL model with colorsuperconductivity, and the hadronic one from a relativistic mean-field RMFmodel with density-dependent couplings DD-RMF. For the construction of thephase transition regions we employ here for simplicity a Maxwell construction.We present the phase diagram for symmetric matter which exhibits two remarkablefeatures: 1 a -nose-like structure of the hadronic-to-quark matter phaseborder with an increase of the critical density at temperatures below T ~ 150MeV and 2 a high critical temperature for the border of the two-flavor colorsuperconducting 2SC phase, T c > 160 MeV. We show the trajectories ofheavy-ion collisions in the plane of excitation energy vs. baryon densitycalculated using the UrQMD code and conjecture that for incident energies of 4

. 8 A GeV as provided, e.g., by the Nuclotron-M at JINR Dubna or by lowestenergies at the future heavy-ion collision experiments CBM@FAIR and NICA@JINR,the color superconducting quark matter phase becomes accessible.



Autor: D.B. Blaschke, F. Sandin, V.V. Skokov, S. Typel

Fuente: https://arxiv.org/







Documentos relacionados