Quark Matter 2015 - XXV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

Session

Baryon Rich QCD Matter

30-7

30 Sept 2015, 10:50

Kobe, Fashion Mart, Japan

Conveners

Baryon Rich QCD Matter

• Claudia Hoehne (University Giessen (DE))

572. Critical point search from an extended parameter space of lattice QCD at finite temperature and density

Shinji Ejiri (Niigata University)

30/09/2015, 10:50

Baryon Rich QCD Matter

Contributed talk

Aiming to understand the phase structure of lattice QCD at nonzero temperature and density, we study the phase transitions of QCD in an extended parameter space, where the number of flavor, quark masses, complex chemical potentials and so on are considered as parameters. Performing simulations of 2-flavor QCD with improved staggered and Wilson fermions and using the reweighting method, we...

573. Real time evolution of non-Gaussian cumulants in the QCD critical regime

Swagato Mukherjee (Brookhaven National Laboratory)

30/09/2015, 11:10

Baryon Rich QCD Matter

Contributed talk

Enhanced near critical fluctuations can be quantified by the variance of the critical field (the Gaussian cumulant), as well as higher non-Gaussian cumulants such as skewness and kurtosis. These non-Gaussian cumulants are accessible through measurements of event-by-event fluctuations of various particle multiplicities. Non-Gaussian event-by-event fluctuations of multiplicities are generically...

73. Estimation of the shear viscosity at finite net-baryon density from A+A collision data at $\sqrt{s_{NN}} = 7.7-200$ GeV

Iurii Karpenko (Frankfurt Institute for Advanced Studies)

30/09/2015, 11:30

Baryon Rich QCD Matter

Contributed talk

We present the first application of state-of-the-art 3D viscous hybrid model to heavy ion collisions at RHIC Beam Energy Scan (BES) energy range $\sqrt{s}=7.7\dots200$ GeV. The model employs the hadron transport approach UrQMD for the early and late non-equilibrium stages of the reaction, and 3+1 dimensional viscous hydrodynamics for the hot and dense quark-gluon plasma stage. It includes the...

323. Measurement of hadron suppression at 14.5GeV and study of its connection with the disappearance of other QGP signatures at low $\sqrt{s_{NN}}$ in Au+Au collisions with STAR at RHIC in BES I

Stephen Horvat (STAR)

30/09/2015, 11:50

Baryon Rich QCD Matter

Contributed talk

At top RHIC energies and at the LHC, the suppression of high transverse momentum ($p_{T}$) hadrons provides evidence for partonic energy loss in a QGP. We study jet quenching in the RHIC BES by investigating the centrality dependence of the binary-collision-scaled high-$p_{T}$ yields. In this representation we can see if the scaled yield decreases as we go to larger overlap regions and higher...

379. PHENIX results on global observables and flow in Au$+$Au collisions from the RHIC Beam Energy Scan

Jeffery Mitchell (Brookhaven National Laboratory)

30/09/2015, 12:10

Baryon Rich QCD Matter

Contributed talk

The RHIC Beam Energy Scan explores the high baryon density region of the QCD phase diagram to find signatures of the critical point. PHENIX has measured global observables such as $dN_{ch}/d\eta$ and $dE_{T}/d\eta$ at midrapidity in Au$+$Au collisions at $\sqrt{s_{NN}}$=7-200 GeV as well as elliptic ($v_{2}$) and triangular ($v_{3}$) flow coefficients for identified charged hadrons at...