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XIV Polish Workshop on Relativistic Heavy-Ion Collisions: Interplay between soft and hard probes of heavy-ion collisions

6–7 Apr 2019
Kraków, Poland
Europe/Zurich timezone

Contact

Session

Session II

6 Apr 2019, 11:00
Kraków, Poland

Kraków, Poland

AGH University of Science and Technology Faculty of Physics and Applied Computer Sciences Reymonta 19 Kraków, Poland

Conveners

Session II

  • Wojciech Florkowski (Institute of nuclear Physics, Krakow)

Presentation materials

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  1. 21. Chemical equilibration of QGP in hadronic collisions
    Aleksas Mazeliauskas (Universität Heidelberg)
    06/04/2019, 11:00
    Oral

    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...

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  2. 32. Far-from-equilibrium hydrodynamics
    Michał Spalinski
    06/04/2019, 11:30
    Oral

    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.

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  3. 17. Theoretical way to the $\gamma\gamma \to \gamma\gamma$ from $AA \to AA \gamma\gamma$
    Mariola Kłusek-Gawenda (IFJ PAS)
    06/04/2019, 11:50
    Oral

    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...

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  4. 2. Evolution equations for medium-induced QCD cascades and their solutions
    Krzysztof Kutak (Instytut Fizyki Jadrowej Polskiej Akademii Nauk)
    06/04/2019, 12:10
    Oral

    "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...

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