We suggest a new Bayesian analysis (BA) using disjunct M-R constraints for extracting probability measures for cold, dense matter equations of state (EoS). 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. We show by postulating results of not yet existing radius measurements for the known pulsars with a mass of 2M⊙ that a radius gap of about 3 km would clearly select an EoS with a strong first order phase transition as the most probably one. This would support the existence of a critical endpoint in the QCD phase diagram under scrutiny in present and upcoming heavy-ion collision experiments.
@article{arxiv.1511.05880,
title = {Mass-radius constraints for the neutron star EoS - Bayesian analysis},
author = {A. Ayriyan and D. E. Alvarez-Castillo and D. Blaschke and H. Grigorian},
journal= {arXiv preprint arXiv:1511.05880},
year = {2016}
}