Mass and radius constraints for compact stars and the QCD phase diagram

2nd International Symposium on the Modern Physics of Compact Stars and Relativistic Gravity

物理学;天文学

Blaschke, David B.^1,3 ; Grigorian, Hovik A.^2,4 ; Alvarez-Castillo, David E.^1,3 ; Ayriyan, Alexander S.^2

Institute for Theoretical Physics, University of Wroclaw, 50-204 Wroclaw, Poland^1

Laboratory of Information Technologies, JINR Dubna, 141980 Dubna, Russia^2

Instituto de Física, Universidad Autónoma de San Luis Potosí, SLP, 78290 San-Luis-Potosí, Mexico^3

Department of Theoretical Physics, Yerevan State University, 0025 Yerevan, Armenia^4

关键词: Bayesian Analysis;    Compact stars;    Critical end-point;    Deconfinement;    First order transitions;    Heavy ion collision;    Probability measures;    Qcd phase diagrams;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/496/1/012002/pdf
DOI  :  10.1088/1742-6596/496/1/012002

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

We suggest a new Bayesian analysis using disjunct M-R constraints for extracting probability measures for cold, dense matter equations of state. One of the key issues of such an analysis is the question of a deconfinement transition in compact stars and whether it proceeds as a crossover or rather as a first order transition. The latter question is relevant for the possible existence of a critical endpoint in the QCD phase diagram under scrutiny in present and upcoming heavy-ion collision experiments.