Hard Probes 2012

Session

Plenary 1B

28 May 2012, 11:15

Cagliari - Italy

85. High pT identified particle production in ALICE

Peter Christiansen (Lund University)

28/05/2012, 11:15

Oral presentation

The production of particles at high $p_T$ in pp collisions can be described using perturbative QCD. In Pb-Pb collisions the observed yield of high $p_T$ particles is much smaller than expected from binary scaling because of strong final state interactions with the surrounding dense medium. Experiments at RHIC have shown that this modification is very different for mesons and baryons. In the...

26. Perturbative vs non-perturbative aspects of jet quenching: the role of color flow

Andrea Beraudo (CERN)

28/05/2012, 11:45

Oral presentation

Providing a unified description of the various "jet-quenching" observable nowadays available represents a deep challenge. Several model calculations are available on the market, mostly based on the factorization between an energy loss occurring at the partonic level in the medium and a standard time-delayed non-perturbative hadronization stage taking place in the vacuum. Two important...

31. Advancing QCD-based calculations of energy loss

Konrad Tywoniuk (Lund University)

28/05/2012, 12:15

Oral presentation

As a first step towards an understanding the physics of jet modifications in heavy-ion collisions, we analyze the radiation off a QCD antenna propagating through a quark-gluon plasma. The resulting spectrum is characterized in terms of the hardest scale of the problem. We show that this scale is either 1) the inverse size of the antenna as probed by the medium or 2) the maximal momentum...