Conveners
Session II
- Wojciech Florkowski (Institute of nuclear Physics, Krakow)
We performed state-of-the-art QCD effective kinetic theory simulations of chemically equilibrating QGP in longitudinally expanding systems. We find that chemical equilibration takes place after hydrodynamization, but well before local thermalization. By relating the transport properties of QGP and the system size we estimate that hadronic collisions with final state multiplicities dNch/dη≳10^2...
In a number of settings (including models of kinetic theory and strongly
coupled supersymmetric Yang-Mills theory), the pressure anisotropy of
boost-invariant flow is known to exhibit attractor behaviour well before local
equilibration is attained. I will describe some aspects of this phenomenon and
its possible implications for relativistic hydrodynamics.
So far light-by-light scattering ($\gamma\gamma \to \gamma\gamma$) was not accessible for experiments because the corresponding cross section is rather low. Measurements of diphotons in ultra-peripheral collisions (UPCs) of lead-lead have been reported recently by the ATLAS [1] and CMS Collaborations [2]. Our theoretical results based on equivalent photon approximation in the impact parameter...
"I am going present solutions of evolution equations for inclusive
distribution of gluons as produced by jet traversing quark-gluon
plasma. The the original equation is reformulated in such a form that
the virtual and unresolved-real emissions as well as unresolved
collisions with medium are resummed in a Sudakov-type form factor. The
resulting integral equations are then solved most...
