Parallel Session 4.1: Baryon-Rich QCD Matter and Astrophysics (I)
- Peter Senger (GSI)
As the density of matter increases, atomic nuclei disintegrate into nucleons and, eventually, the nucleons themselves disintegrate into quarks. The phase transitions (PTs) between these phases can vary from steep first order phase transitions to smooth crossovers, depending on certain conditions. First order phase transitions with more than one globally conserved charge, so-called...
Significant progress has been made in the past few years in determining QGP properties, such as the temperature dependence of shear viscosity over entropy density ratio $\eta/s$. However, $\eta/s$ might depend also on the baryochemical potential $\mu_B$, as has been hinted at in a recent beam energy scan study .
It is generally difficult to determine the uncertainties associated with the...
Light nuclei have much smaller binding energy compared to the temperature of the system. Consequently, their distributions can be used to probe the freeze-out properties, such as correlation volume and local baryon density of the medium created in high-energy nuclear collisions.
In this talk, we report the results of deuteron and anti-deuteron production in Au-Au collision at...
Rapidity correlations in the RHIC Beam Energy Scan.
Sedigheh Jowzaee for the STAR Collaboration
A pair-normalized two-particle covariance versus the rapidity
of the two particles, called R$_2$, was originally studied
 in ISR and FNAL data in the 1970's and has recently seen
renewed interest  to study the dynamics of heavy-ion
collisions in the longitudinal...
Using a hybrid (viscous hydrodynamics + hadronic cascade) framework, we model event-by-event bulk dynamics of relativistic heavy-ion collisions at the Relativistic Heavy Ion Collider (RHIC) Beam Energy Scan (BES) collision energies, including the effects from non-zero net baryon current and its dissipative diffusion during the evolution. This framework is in full (3+1)D, which allows us to...
The second phase of the Beam Energy Scan at RHIC, BES-II, is scheduled
for 2019-2020 and will explore with precision measurements the high baryon
density region of the QCD phase diagram. The program will examine the
energy regime of interest determined from the results of BES-I. Some of
the key measurements anticipated are: the kurtosis of net-protons that
could pinpoint the position of a...