68 citations · 372 across the 29 of their papers we have counts for
29 papers
Scaling of particle production with number of participants in high-energy A+A collisions in the parton-cascade model
Dinesh Kumar Srivastava, Klaus Geiger
In view of the recent WA98 data of spectra from central Pb+Pb collisions at the CERN SPS, we analyze the production of neutral pions for A+A collisions across the periodic ta…
Propagation of Gluons From a Non-Perturbative Evolution Equation in Axial Gauges
Klaus Geiger
We derive a non-perturbative evolution equation for the gluon propagator in axial gauges based on the framework of Wetterich's formulation of the exact renormalization group. We ob…
Bose-Einstein Final State Symmetrization for Event Generators of Heavy Ion Collisions
U. A. Wiedemann, J. Ellis, U. Heinz +1
We discuss algorithms which allow to calculate identical two-particle correlations from numerical simulations of relativistic heavy ion collisions. A toy model is used to illustrat…
Scaling of particle production with number of participants in high-energy A+A collisions in the parton-cascade model
Dinesh K. Srivastava, Klaus Geiger
In view of the recent WA98 data of pi0 spectra from central Pb+Pb collisions at the CERN SPS, we analyze the production of neutral pions for A+$ collisions across the periodic tabl…
VNI-4.1: Simulation of space-time evolution of e^+e^- .... A+B collisions with parton-cascades, parton-hadron conversion, final-state hadron cascades
Klaus Geiger, Ron Longacre, Dinesh K. Srivastava
VNI is a general-purpose Monte-Carlo event-generator, which includes the simulation of lepton-lepton, lepton-hadron, lepton-nucleus, hadron-hadron, hadron-nucleus, and nucleus-nucl…
Multiple parton interactions in high-density QCD matter
Dinesh K. Srivastava, Klaus Geiger
Multiple interactions of quarks and gluons in high-energy heavy-ion collisions may give rise to interesting phemomena of color charges propagating in high-density QCD matter. We st…
Flash of photons from the early stage of heavy-ion collisions
Dinesh K. Srivastava, Klaus Geiger
The dynamics of partonic cascades may be an important aspect for particle production in relativistic collisions of nuclei at CERN SPS and BNL RHIC energies. Within the Parton-Casca…
Parton Cascade Description of Heavy-Ion Collisions at CERN ?
Klaus Geiger
There seems to be a general consensus now that a first glimpse of a QGP-like effect has become visible in the beautiful NA50 data on J/ψproduction and the `anomalous supression' ph…
Spectra of produced particles at CERN SPS heavy-ion collisions from a parton-cascade model
Dinesh Kumar Srivastava, Klaus Geiger
We evaluate the spectra of produced particles (pions, kaons, antiprotons) from partonic cascades which may develop in the wake of heavy-ion collisions at CERN SPS energies and whic…
How dense does parton matter get in Pb + Pb Collisions at the CERN SPS?
Klaus Geiger, Berndt Mueller
We examine the qualitative features of parton production through materialization in heavy-ion collisions within perturbative QCD, and estimate the magnitude of the resulting parton…
A QCD space-time analysis of quarkonium formation and evolution in hadronic collisions
Klaus Geiger
The production of heavy quarkonium as QQbar bound-states in hadron-hadron collisions is considered within the framework of a space-time description, combining parton-cascade evolut…
Parton cascade description of relativistic heavy-ion collisions at CERN SPS energies ?
Klaus Geiger, Dinesh Kumar Srivastava
We examine Pb+Pb collisions at CERN SPS energy 158 A GeV, by employing the earlier developed and recently refined parton-cascade/cluster-hadronization model and its Monte Carlo imp…
Interplay of parton and hadron cascades in nucleus-nucleus collisions at the CERN SPS and RHIC
Klaus Geiger, Ronald Longacre
We introduce a Monte Carlo space-time model for high-energy collisions with nuclei, involving the dynamical interplay of perturbative QCD parton production and evolution, with non-…
Signatures of Parton Exogamy in e+ e- -> W+ W- -> hadrons
John Ellis, Klaus Geiger
We propose possible signatures of `exogamous' combinations between partons in the different W+ and W- hadron showers in e+e- -> W+W- events with purely hadronic final states. Withi…
VNI-3.1: MC-simulation program to study high-energy particle collisions in QCD by space-time evolution of parton-cascades and parton-hadron conversion
Klaus Geiger
VNI is a general-purpose Monte-Carlo event-generator, which includes the simulation of lepton-lepton, lepton-hadron, lepton-nucleus, hadron-hadron, hadron-nucleus, and nucleus-nucl…
Non-equilibrium QCD: Interplay of hard and soft dynamics in high-energy multi-gluon beams
Klaus Geiger
A quantum-kinetic formulation of the dynamical evolution of a high-energy non-equilibrium gluon system at finite density is developed, to study the interplay between quantum fluctu…
Non-equilibrium QCD of high-energy multi-gluon dynamics
Klaus Geiger
I discuss an approach to derive from first principles, a real-time formalism to study the dynamical interplay of quantum and statistical-kinetic properties of non-equilibrium multi…
Deep-Inelastic Final States in a Space-Time Description of Shower Development and Hadronization
John Ellis, Klaus Geiger, Henryk Kowalski
We extend a quantum kinetic approach to the description of hadronic showers in space, time and momentum space to deep-inelastic collisions, with particular reference to experi…
Space, Time and Color in Hadron Production Via e+e- -> Z0 and e+e- -> W+W-
John Ellis, Klaus Geiger
The time-evolution of jets in hadronic e+e- events at LEP is investigated in both position- and momentum-space, with emphasis on effects due to color flow and particle correlations…
Quantum Field Kinetics of QCD: Quark-Gluon Transport Theory for Lightcone Dominated Processes
Klaus Geiger
A quantum kinetic formalism is developed to study the dynamical interplay of quantum and statistical-kinetic properties of non-equilibrium multi-parton systems produced in high-ene…
REAL-TIME DESCRIPTION OF PARTON-HADRON CONVERSION AND CONFINEMENT DYNAMICS
John Ellis, Klaus Geiger
We propose a new and universal approach to the hadronization problem that incorporates both partonic and hadronic degrees of freedom in their respective domains of relevance, and t…
REAL-TIME DYNAMICS OF PARTON-HADRON CONVERSION
John Ellis, Klaus Geiger
We propose a new and universal approach to the hadronization problem that incorporates both perturbative QCD and effective field theory in their respective domains of validity and…
Effective Field Theory Approach to Parton-Hadron Conversion in High Energy QCD Processes
K. Geiger
A QCD based effective action is constructed to describe the dynamics of confinement and symmetry breaking in the process of parton-hadron conversion. The deconfined quark and gluon…
High Density QCD and Entropy Production at Heavy Ion Colliders
Klaus Geiger
The role of entropy production in the context of probing QCD properties at high densities and finite temperatures in ultra-relativistic collisions of heavy nuclei is inspected. It…