Susceptibilities from a black hole engineered EoS with a critical point

Abstract

Currently at the Beam Energy Scan at RHIC experimental efforts are being made to find the QCD critical point. On the theoretical side, the behavior of higher-order susceptibilities of the net-baryon charge from Lattice QCD at ${\mu }_{{}_B}=0$ may allow us to estimate the position of the critical point in the QCD phase diagram. However, even if the series expansion continues to higher-orders, there is always the possibility to miss the critical point behavior due to truncation errors. An alternative approach is to use a black hole engineered holographic model, which displays a critical point at large densities and matches lattice susceptibilities at ${\mu }_{{}_B}=0$. Using the thermodynamic data from this black hole model, we obtain the freeze-out points extracted from the net-protons distribution measured at STAR and explore higher order fluctuations at the lowest energies at the beam energy scan to investigate signatures of the critical point.

4 pages, 3 figures, contribution to the proceedings of Hot Quarks 2016 conference at South Padre Island, TX, USA

References in corpus (13)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The importance of the bulk viscosity of QCD in ultrarelativistic heavy-ion collisions
• Mimicking the QCD equation of state with a dual black hole
• Thermodynamics and bulk viscosity of approximate black hole duals to finite temperature quantum chromodynamics
• QCD at finite chemical potential with six time slices
• A holographic critical point
• Freeze-out conditions from net-proton and net-charge fluctuations at RHIC
• Freeze-out parameters from electric charge and baryon number fluctuations: is there consistency?
• Momentum transport in strongly coupled anisotropic plasmas in the presence of strong magnetic fields
• Bulk viscosity-driven suppression of shear viscosity effects on the flow harmonics at RHIC
• Phase structure of lattice QCD with two flavors of Wilson quarks at finite temperature and chemical potential
• Suppression of baryon diffusion and transport in a baryon rich strongly coupled quark-gluon plasma
• Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma

Cited by in corpus (2)

• Holographic study of higher-order baryon number susceptibilities at finite temperature and density
• Baryon susceptibilities from a holographic equation of state