Exploring the Perfect Liquid

Session

Flow

Sep 6, 2018, 2:00 PM

E.0.11 (Max Planck Institute for Astrophysics (MPA))

Conveners

Flow: Afternoon

• Jean-Yves Ollitrault (Institut de physique theorique, Saclay)

Contribution list Timetable

24. Flow overview

Piotr Bozek (AGH University of Science and Technology)

9/6/18, 2:00 PM

Flow

Overview talk on flow

6. Does eta/s depend on EoS?

Pasi Huovinen (University of Wroclaw)

9/6/18, 2:35 PM

Flow

In hydrodynamical modeling of heavy-ion collisions, the equation of state (EoS) is usually taken to be lattice QCD EoS. However, the still often used parametrisation for lattice QCD EoS, s95p, is strictly speaking not compatible with the contemporary lattice QCD results. We have devised a new family of EoS parametrisations based on hotQCD and Budapest-Wuppertal data, and different lists of...

19. Symmetric cumulants: Overview of experimental results so far and future directions

Ante Bilandzic (Technical University of Munich)

9/6/18, 3:05 PM

Flow

Symmetric cumulants, the novel flow observables which quantify the correlations between event-by-event fluctuations of two different flow harmonics, have been utilized extensively by the experimentalists in recent flow analyses in ultra-relativistic nuclear collisions, both at RHIC and LHC.

These observables provide the strong constraints for the details of QGP's temperature dependence of...

14. Systematic formulation of far-from-equilibrium relativistic fluid dynamics

Jorge Noronha (University of Sao Paulo)

9/6/18, 4:05 PM

Flow

We show that far-from-equilibrium relativistic fluid dynamics may be systematically defined, for arbitrary flow profiles, in terms of a generalized tensorial expansion with transport coefficients that contain an all order resummation in gradients. In this formulation, the transport coefficients of far-from-equilibrium fluid dynamics depend not only on the microscopic properties of the system...

8. Automatic computation of n-subset n-particle correlators and new applications

Jacopo Margutti

9/6/18, 4:35 PM

Flow

Multi-particle cumulants are a widely used experimental method to disentangle few-body short-range azimuthal correlations, usually called non-flow, from many-body long-range ones, which carry information on collective dynamics. Cumulants can be defined in terms of correlators, which can be efficiently computed from $Q$-vectors via the Generic Framework (GF) algorithms, especially when direct...

22. Non-Gaussian flow fluctuations in heavy-ion collisions

Giuliano Giacalone (Université Paris-Saclay)

9/6/18, 5:05 PM

Flow

I present the state-of-the-art of anisotropic flow fluctuations in heavy-ion collisions. Event-by-event fluctuations of flow coefficients are investigated experimentally by means of multi-particle cumulants, which are indicators of the non-Gaussian behavior of the $v_n$ distributions. After a brief review of the theoretical basis underlying cumulants and the related observables, I use selected...

1. Experimental Constraints on the Physics in Small Systems

Jamie Nagle (University of Colorado Boulder)

9/6/18, 5:35 PM

Small systems

There is now a wealth of experimental data from RHIC and the LHC in small collision systems ranging from p+p, p+A, d+Au, 3He+Au that should help for constraining the underlying physics mechanisms at play. We detail a number of the key observables (https://arxiv.org/abs/1801.03477) and give a critical assessment of various theoretical interpretations. We attempt to provide a map forward in...