Q-PYTHIA - a Monte Carlo implementation for jet quenching

Abstract

RHIC experiments have established jet quenching as a fundamental tool in the study of hot matter in heavy-ion collisions. The energy reached is enough for high-pT inclusive particle studies and one- or two-particle correlations up to pT= 10-20 GeV. The corresponding data are successfully described by a formalism based on radiative energy losses. This formalism needs, however, to be improved for more exclusive observables, in particular for the reconstructed jet properties. Jet reconstruction is a new branch in heavy-ion collisions with very high expectations as a tool for the characterization of the medium properties. We present here an implementation of the jet quenching phenomena based on a modification at the level of the splitting functions in parton showers in standard, general purpose, Monte Carlos as PYTHIA or HERWIG.

Contribution to the proceedings of Moriond QCD 2009, 4 pages, 2 figures

References in corpus (9)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs)
• Parton shower evolution in a 3-d hydrodynamical medium
• First fragmentation function measurements from full jet reconstruction in heavy-ion collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV by STAR
• First Direct Measurement of Jets in $\sqrt{s_{NN}}=200$ GeV Heavy Ion Collisions by STAR
• Distorting the Hump-backed Plateau of Jets with Dense QCD Matter
• A Short Review on Jet Identification