Conveners
Parallel 30: jets in early stages
- Yacine Mehtar-Tani (Brookhaven National Laboratory)
The evolution of jets showers in high energy nuclear collisions is influenced in various ways by the presence of a surrounding medium. The interaction of jet constituents with the medium can happen during the partonic stage of the jet, during hadronization, and even during its hadronic stage. We will demonstrate how flow of the ambient medium in a direction transverse to the jet can introduce...
In this talk, we present a novel extension to the theory of jet quenching, incorporating the effect of both the flow and anisotropy of matter undergoing hydrodynamic evolution. The interplay between these two vectorial magnitudes results in a significant rescaling of fundamental objects, like the jet quenching parameter. Depending on the relative direction of the two vectors, the energy loss...
We derive the leading modifications of the transverse momentum broadening and medium-induced gluon spectrum in anisotropic flowing matter for the case of a heavy leading quark. We show that the broadening and radiation patterns develop new directional dependence due to an interplay of the quark mass and matter flow, absent in the massless case. In turn, the interplay of the medium anisotropy...
The states of matter produced in the early stage of heavy ion collisions can be highly anisotropic. If such a feature is sufficiently pronounced, one should expect the final particle distribution inside jets to reflect it in the form of non-trivial angle correlations. In this talk, we discuss a first step in exploring such correlations by studying how a $q\bar q$ state branching from an...
We study the energy loss and momentum broadening of a high energy quark jet in the high density gluon medium created right after the collision of two ultrarrelativistic heavy nuclei, the Glasma. Using the light-front QCD Hamiltonian formalism, we compute the real-time evolution of the quark jet. We thereby treat the jet as a fully quantum state, and describe the Glasma as an evolving classical...
