Conveners
Saturday morning
- Christine Nattrass (University of Tennessee (US))
In this talk I will go through some recent developments in the description of the initial stages of hadronic and heavy ion collisions.
In very high energy collisions nuclei are practically transparent to each other but produce very hot, nearly baryon-free, matter in the so-called central rapidity region. The energy in the central rapidity region comes from the kinetic energy of the colliding nuclei. We calculate the energy and rapidity loss of the nuclei using the Color Glass Condensate model. This model also predicts the...
Drell-Yan pair production off nuclei is an ideal tool to test the initial state nuclear effects occurring before a hard collision since no interaction in the final state is expected, either energy loss or absorption. We present for the first time a comprehensive study of the nucleus-to-nucleon production ratio (the nuclear modification factor) within the color dipole approach using the Green...
The early time dynamics of heavy ion collisions can be described by classical fields in an approximation of Quantum ChromoDynamics (QCD) called Color Glass Condensate (CGC). Monte-Carlo sampling of the color charge for the incoming nuclei are used to calculate their classical gluon fields. We use the recent work by Chen et. al. (Phys. Rev. C 92, 064912, 2015) to calculate the energy momentum...
The heavy quark degrees of freedom of the QGP with special focus on mass effects are investigated. A next-to-leading-order perturbation theory approach with bare quark mass dependence is applied and compared to Lattice results with physical bare quark masses. The susceptibilities and ratios of it appear to be the most interesting quantities and show a good agreement with lattice data.
