scholarly journals Beam Energy Scan Program at RHIC (BES I and BES II) – Probing QCD Phase Diagram with Heavy-Ion Collisions

2019 ◽  
Author(s):  
Grazyna Odyniec ◽  
Keyword(s):  
Phase Diagram ◽  
Beam Energy ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Qcd Phase Diagram ◽  
Ion Collisions ◽  
Beam Energy Scan

scholarly journals Isentropic evolution of the matter in heavy-ion collisions and the search for the critical endpoint

2020 ◽  
Vol 80 (8) ◽  
Author(s):  
Mario Motta ◽  
Rainer Stiele ◽  
Wanda Maria Alberico ◽  
Andrea Beraudo
Keyword(s):  
Phase Diagram ◽  
Heavy Ion Collisions ◽  
Dense Matter ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Qcd Phase Diagram ◽  
Ion Collisions ◽  
Momentum Spectra ◽  
Beam Energy Scan ◽  
Near Future

Abstract We study the isentropic evolution of the matter produced in relativistic heavy-ion collisions for various values of the entropy-per-baryon ratio of interest for the ongoing and future experimental searches for the critical endpoint (CEP) in the QCD phase diagram: these includes the current beam-energy-scan (BES) program at RHIC and the fixed-target collisions foreseen for the near future at various facilities. We describe the hot-dense matter through two different effective Lagrangians: the PNJL (Polyakov–Nambu–Jona–Lasinio) and the PQM (Polyakov-quark-meson) models. We focus on quantities expected to have a direct experimental relevance: the speed of sound, responsible for the collective acceleration of the fireball, and the generalized susceptibilities, connected to the cumulants of the distributions of conserved charges. In principle they should affect the momentum spectra and the event-by-event fluctuations of the yields of identified particles. Taking realistic values for the initial temperature and the entropy-per-baryon ratio we study the temporal evolution of the above quantities looking for differences along isentropic trajectories covering different regions of the QCD phase diagram, passing far or close to the CEP or even intersecting the first-order critical line.

scholarly journals Review of Critical Point Searches and Beam-Energy Studies

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 8 ◽  
Author(s):  
Fabian Rennecke
Keyword(s):  
Phase Diagram ◽  
Critical Point ◽  
Beam Energy ◽  
Particle Number ◽  
Phase Diagram Of Qcd ◽  
Theoretical Perspective ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Introductory Overview ◽  
Beam Energy Scan

I give an introductory overview of the search for the critical point in the phase diagram of QCD in the context of heavy-ion collisions from a theoretical perspective. The focus is on static and dynamic critical physics and the corresponding properties of particle number fluctuations as relevant examples of promising observables for signatures of a critical point in beam-energy scan experiments.

scholarly journals Bulk properties of the medium produced in relativistic heavy-ion collisions from the beam energy scan program

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
L. Adamczyk ◽  
J. K. Adkins ◽  
G. Agakishiev ◽  
M. M. Aggarwal ◽  
Z. Ahammed ◽  
...  
Keyword(s):  
Beam Energy ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Bulk Properties ◽  
Ion Collisions ◽  
Beam Energy Scan
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