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VERSION:2.0
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SUMMARY:Kinetic theory and transport coefficients of hot QCD
DTSTART:20181119T140000
DTEND:20181119T153000
DTSTAMP:20260916T034719Z
UID:5a9b21c78b50dbbf947b18f02bf589c30e57a8c033c578477aa0fd6a
CATEGORIES:Conferences - Seminars
DESCRIPTION:Jacopo Ghiglieri (CERN)\nOne of the main findings of the exper
 imental program on ultrarelativistic heavy ion collisions\nis that the p
 roduced medium appears to have a very small shear viscosity to entropy rat
 io. \nAfter an introduction to the subject I will review the challenges i
 n the theory description\, focussing in particular on the effective\nkin
 etic theory approach\, which allows to compute both the transport coeffici
 ents\, such as the shear viscosity\,\nand the medium modifications to jets
 \, another striking finding of the experimental program.  \nAfter introdu
 cing the main features of the kinetic framework\, which requires\nthe assu
 mption of weak coupling\, I will review the recent results in extending su
 ch approach to next-to-leading\norder\, so that one can estimate the uncer
 tainties that arise when extrapolating to realistic couplings. \nI will a
 lso compare the weak-coupling results with the holographic results and I w
 ill discuss the relevance of the methods I present for early-universe cosm
 ology.
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727
STATUS:CONFIRMED
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