One of the important findings in small colliding systems at the LHC energies is that yields of (multi-)strange hadrons enhance more rapidly than those of charged pions as functions of multiplicity. To interpret this, we develop a dynamical initialization model with core-corona picture in hydrodynamic models. We generate the initial partons using some event generator. We put them in the source...
The produced matter in the high energy nuclear collisions reinteracts and form a plasma which ultimately equilibrates and exhibits collective hydrodynamic flow.
The connection between the early gluon production in classical field simulations and hydrodynamic expansion at later times is given by the QCD kinetic theory.
I will discuss the recent progress on smooth matching between these three...
In this talk I overview the results of our studies of heavy ion collisions at RHIC BES energies in the framework of a viscous hydro + cascade model, vHLLE+UrQMD, focusing on the following phenomena:
- Lambda polarization - from RHIC BES to LHC energies
- Femtoscopic observables at RHIC BES
And discuss challenges for hydrodynamic modelling at the lower collision energies (RHIC BES, FAIR,...
A relativistic viscous hydrodynamic model plays an important role in the quantitative
understanding of the QGP bulk property.
In spite of the success of hydrodynamic models in high-energy heavy-ion collisions,
there are still several issues under discussion.
In particular, we emphasize that a numerical algorithm for solving the relativistic hydrodynamic
equation is one of the important...
Relativistic hydrodynamics has played a key role in our understanding of the novel properties of quark-gluon plasma. However, the validity of hydrodynamical models in describing the extreme conditions produced in heavy ion collisions has still not been properly justified theoretically. Even more, the gradient expansion, commonly used to derive hydrodynamics from microscopic theory, has been...
The "unreasonable effectiveness" of relativistic fluid dynamics in describing high energy heavy-ion and even proton-proton collisions will be demonstrated and discussed. Several recent ideas of optimizing relativistic fluid dynamics for the specific challenges posed by such collisions will be presented, and some thoughts will be offered why the framework works better than originally expected....
Relativistic viscous hydrodynamics consists of a set of complicated nonlinear differential equations. Nevertheless, it is possible to find simple relations between particular aspects of the initial conditions and final observables in hydrodynamic simulations of relativistic heavy ion collisions. The canonical example is the event-by-event proportionality between elliptic flow and initial...
Most of the information we have about the phases modelled by hydrodynamics in relativistic nuclear collisions comes from the analyses of hadronic collectivity. However, electromagnetic radiation (real and virtual photons) can be both penetrating and soft, and as such opens a unique window to the space-time regions that are opaque to hadrons. In this talk, we will review how measurements of...
