A parton-hadron cascade approach in high-energy nuclear collisions

A Parton-Hadron Cascade Approach in High-energy Nuclear Collisions

Event generators based on perturbative QCD (pQCD) are proposed such as HIJING (Heavy Ion Jet Interaction Generator)[1], VNI (Vincent Le Cucurullo Con Giginello)[2], in order to describe ultra-relativistic heavy ion collisions, especially, at collider energies (RHIC/LHC). Although both models reproduce many pp and p̄p data, there are large discrepancies in AA collisions between these two models, ...

Hadron Production in Nuclear Collisions - a New Parton Model Approach

HADRON PRODUCTION IN NUCLEAR COLLISIONS A NEW PARTON MODEL APPROACH* 4 Stanley J, Brodsky Stanford Linear Accelerator Center Stanford University, Stanford, California 94305 John F. Gunion Department of Physics University of California, Davis, California 95616 J, H. Kchn Max Planck Ins$itut fcr Physik und Astrophysik Munchen 40, Germany ABSTRACT We consider a simple quark-parton model for inelas...

Hadron freeze - out conditions in high energy nuclear collisions

The purpose of the current heavy ion programs at CERN (Switzerland) and Brookhaven National Laboratory (USA) is to probe strongly interacting matter under extreme conditions, i.e. at high densities and temperatures. The central subject of these studies is the transition from the quark-gluon plasma to hadronic matter. In the early phases of ultra-relativistic heavy ion collisions, when a hot and...

A Pqcd-based Approach to Parton Production and Equilibration in High-energy Nuclear Collisions *

Tomography of high-energy nuclear collisions with photon-hadron correlations.

Within the next-to-leading order (NLO) perturbative QCD (PQCD) parton model, suppression of away-side hadron spectra associated with a high pT photon due to parton energy loss is studied in high-energy heavy-ion collisions. Because of the sharp falloff of the gamma-jet spectrum in momentum imbalance pTjet-pTgamma>0 in NLO PQCD, hadron spectra at large zT=pTh/pTgamma greater than approximately 1...