Orateur
Dr
Yacine Mehtar-Tani
(University of Santiago de Compostela)
Description
Jet physics in hadron collisions is known as one of the most accurate in
testing perturbative QCD for 30 years. However, in Heavy-Ion collisions
(HIC), at RHIC and at the LHC, the situation is much more involved due to
the interaction of jets with the produced quark-gluon plasma right after the
collision. Thus, a better theoretical control of jet dynamics in the
presence of a QCD medium is becoming crucial if one would like to have a clean access
to the properties of the QGP.
To this end, we have investigated medium modification of the radiation
pattern of a quark-antiquark antenna traversing a dense medium in order to learn how
the QGP alters color coherence which is an important feature of the intRAjet
structure in vacuum. In contrast to gluon radiation in vacuum, and
unexpectedly, we find anti-angular ordering of gluon radiations and thus only the soft
logarithmic divergence remains. These results provide a starting point for
further and more complete studies on in-medium jet modification.
Auteur principal
Dr
Yacine Mehtar-Tani
(University of Santiago de Compostela)
