English
Related papers

Related papers: How to Find the QCD Critical Point

200 papers

The current understanding of finite temperature phase transitions in QCD is reviewed. A critical discussion of refined phase transition criteria in numerical lattice simulations and of analytical tools going beyond the mean-field level in…

High Energy Physics - Lattice · Physics 2008-11-26 Hildegard Meyer-Ortmanns

We utilize an event-by-event relativistic hydrodynamic calculation performed at a number of different incident beam energies to investigate the creation of hot and dense QCD matter near the critical point. Using state-of-the-art analysis…

We theoretically study divergent fluctuations of dynamical events at non-ergodic transitions. We first focus on the finding that a non-ergodic transition can be described as a saddle connection bifurcation of an order parameter for a time…

Statistical Mechanics · Physics 2015-06-25 Mami Iwata , Shin-ichi Sasa

We study fluctuations of particle number in the presence of critical point by utilizing molecular dynamics simulations of the classical Lennard-Jones fluid in a periodic box. The numerical solution of the $N$-body problem naturally…

High Energy Physics - Phenomenology · Physics 2022-04-27 Volodymyr A. Kuznietsov , Oleh Savchuk , Mark I. Gorenstein , Volker Koch , Volodymyr Vovchenko

The fluctuations of proton multiplicity in heavy-ion collisions are the key observables in the search for the QCD critical point. In this work we present an approach to constraining the cumulants of proton number based on the analytical…

Nuclear Theory · Physics 2026-03-26 Gokce Basar , Maneesha Pradeep , Mikhail Stephanov

I review arguments for the existence of a critical point E in the QCD phase diagram as a function of temperature T and baryon chemical potential \mu. I describe how heavy ion collision experiments at the SPS and RHIC can discover the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Krishna Rajagopal

Fluctuations of conserved charges provide a link between high quality theoretical results and precision measurements of heavy ion collisions. We compare results for ratios of the lowest order baryon number susceptibilities from functional…

High Energy Physics - Phenomenology · Physics 2026-03-11 Yi Lu , Christian S. Fischer , Fei Gao , Yu-xin Liu , Jan M. Pawlowski

We introduce a novel freeze-out procedure connecting the hydrodynamic evolution of a droplet of quark-gluon plasma (QGP) that has, as it expanded and cooled, passed close to a posited critical point on the QCD phase diagram with the…

High Energy Physics - Phenomenology · Physics 2021-10-01 Maneesha Pradeep , Krishna Rajagopal , Misha Stephanov , Yi Yin

I show an updated QCD phase diagram with recent developments from chiral effective theories and phenomenological models. Expected signals of a QCD critical point accessible in heavy-ion collisions are also discussed. In particular,…

High Energy Physics - Phenomenology · Physics 2009-11-18 Chihiro Sasaki

We review the present status of the search for a phase transition and critical point as well as anomalous transport phenomena in Quantum Chromodynamics (QCD), with an emphasis on the Beam Energy Scan program at the Relativistic Heavy Ion…

Nuclear Theory · Physics 2020-04-17 Adam Bzdak , ShinIchi Esumi , Volker Koch , Jinfeng Liao , Mikhail Stephanov , Nu Xu

The QCD critical point is a landmark point on the QCD phase diagram, with potential connections to a plethora of deep questions on the properties of thermal nuclear matter. Future heavy-ion collision experiments, in particular, the second…

Nuclear Theory · Physics 2018-11-28 Yi Yin

We discuss the role of cumulants of net baryon number fluctuations in the analysis of critical behavior in QCD and the study of freeze-out conditions in heavy ion experiments. Through the comparison of the current set of measurements of…

High Energy Physics - Phenomenology · Physics 2013-05-29 Frithjof Karsch , Krzysztof Redlich

Large density fluctuations of conserved charges have been proposed as a promising signature for exploring the QCD critical point in heavy-ion collisions. These fluctuations are expected to exhibit a fractal or scale-invariant behavior,…

Nuclear Theory · Physics 2025-04-04 Rui Wang , Chengrui Qiu , Chuan-Shen Hu , Zhiming Li , Yuanfang Wu

The change in the energy of the moving heavy (charm and bottom) quarks due to field fluctuations present in the hot QCD medium has been studied. A finite quark chemical potential has been considered while modeling the hot QCD medium…

Nuclear Theory · Physics 2021-01-13 Mohammad Yousuf Jamal , Bedangadas Mohanty

Freeze-out conditions in Heavy Ion Collisions are generally determined by comparing experimental results for ratios of particle yields with theoretical predictions based on applications of the Hadron Resonance Gas model. We discuss here how…

High Energy Physics - Lattice · Physics 2017-11-22 Frithjof Karsch

On the phase diagram of a system undergoing a continuous phase transition of the second order, three lines, hyper-surfaces, convergent into the critical point feature prominently: the ordered and disordered phases in the thermodynamic…

Statistical Mechanics · Physics 2013-07-16 A. Kashuba

We introduce a freeze-out procedure to convert the critical fluctuations in a droplet of quark-gluon plasma (QGP) that has, as it expanded and cooled, passed close to a posited critical point on the phase diagram into cumulants of hadron…

High Energy Physics - Phenomenology · Physics 2022-08-31 Maneesha Pradeep , Krishna Rajagopal , Mikhail Stephanov , Yi Yin

Higher moments of net-proton Binder ratio, which is suggested to be a good experimental measurement to locate the QCD critical point, is measured in relativistic heavy ion collisions. We firstly estimate the effect of statistical…

Nuclear Theory · Physics 2015-05-30 Zhiming Li , Fengbo Xiong , Yuanfang Wu

The description of dynamical fluctuations near the QCD critical point in heavy-ion collisions is crucial for understanding the existing and upcoming experimental data from the beam energy scan programs. In this talk we discuss the evolution…

Nuclear Theory · Physics 2018-04-10 Marlene Nahrgang , Marcus Bluhm , Thomas Schaefer , Steffen A. Bass

Matter described by Quantum Chromodynamics (QCD), the theory of strong interactions, may undergo phase transitions when its temperature and the chemical potentials are varied. QCD at finite temperature is studied in the laboratory by…

High Energy Physics - Phenomenology · Physics 2011-06-24 Sourendu Gupta , Xiaofeng Luo , Bedangadas Mohanty , Hans Georg Ritter , Nu Xu