The aim of the YRC Lunch Seminar is to promote the individual research done by young researchers within Isoquant and, at the same time, create a platform where young researchers can share and compare ideas on a regular basis starting from the fundamentals of every single topic.
The YRC Lunch Seminar is meant to be 20 min long +10 min questions + 20 min for sandwiches and drinks (open to everyone) and then another 40 min discussion just among young researchers.
Speaker: Federica Capellino (GSI, Darmstadt)
Venue: Goldene Box, Physikalisches Institut, INF 226, 69120 Heidelberg
Title of Talk: Hydrodynamic approach to heavy-quark diffusion in the quark-gluon plasma
Abstract:Exciting experimental results on the flow of charmonia and bottomonia, which have nowadays an unprecedented level of precision, pose the important physics question about the possible heavy-quark thermalization in the QGP. In this work, a new hydrodynamic approach to the transport of heavy quarks in the quark-gluon plasma (QGP) is presented. We exploit the conservation of the number of heavy quark–antiquark pairs within the evolution of the QGP to construct causal second-order hydrodynamic equations of motion. The hydrodynamic transport coefficients associated with the heavy-quark diffusion current are then compared with the momentum-diffusion coefficients obtained in transport theory (Fokker-Planck equation). By investigating the relation between the two approaches, we provide new insights concerning the level of local thermalization of charm and bottom quarks inside the expanding QGP.
13:00-13:20 sandwiches and drinks outside/take away
13:20-14:00 discussion YRC
Slides of the talk: https://heibox.uni-heidelberg.de/f/5d686411407440728037/?dl=1