Speaker
grigory ovanesyan
(LANL)
Description
Soft Collinear Effective Theory (SCET) is a powerful tool to
study jet physics. In order to describe jet propagation in the dense
QCD matter created in ultra-relativistic nuclear collisions, SCET
needs to be modified by the inclusion of the transverse to the jet
axis gluon mode, which is commonly referred to as a Glauber gluon. We
construct the Lagrangian of the resulting effective theory and
demonstrate the gauge invariance of the jet broadening and radiative
energy loss results. We show how using effective theory methods allows
us to go beyond the soft gluon approximation, which is commonly used
in the heavy-ion energy loss phenomenology. Our results are presented
for realistic jet-medium scattering cross sections with fully dynamic
QGP response. Finally, we discuss the implications of the
newly-developed theory for LHC hard probes phenomenology with an
emphasis on the quenching of leading particles and jets.
Primary author
grigory ovanesyan
(LANL)
