REAL-TIME DESCRIPTION OF PARTON-HADRON CONVERSION AND CONFINEMENT DYNAMICS

Abstract

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 that describes the conversion between them within a kinetic field theory formulation in real time and full 7-dimensional phase space. We construct a scale-dependent effective theory that reduces to perturbative QCD with its scale and chiral symmetry properties at short space-time distances, but at large distances (r > 1 fm) yields symmetry breaking gluon and quark condensates plus hadronic excitations. The approach is applied to the evolution of fragmenting qq~ and gg jet pairs as the system evolves from the initial 2-jet configuration, via parton showering and cluster formation, to the final yield of hadrons. The phenomenological implications for e+e- -> hadrons are investigated, such as the time scale of the transition, and its energy dependence, cluster size and mass distributions. We compare our results for particle production and Bose-Einstein correlations with experimental data, and find an interesting possibility of extracting the basic parameters of the space-time evolution of the system from Bose enhancement measurements.

51 pages, latex, 14 figures as uu-encoded postscript file.

References in corpus (4)

• Primordial Nucleosynthesis and the Abundances of Beryllium and Boron
• Large Scale Inhomogeneities from the QCD Phase Transition
• Production of Li, Be \& B from Baryon Inhomogeneous Primordial Nucleosynthesis
• Effective Field Theory Approach to Parton-Hadron Conversion in High Energy QCD Processes

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• Real-time nonequilibrium dynamics in hot QED plasmas: dynamical renormalization group approach
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• Signatures of Parton Exogamy in e+ e- -> W+ W- -> hadrons
• Flash of photons from the early stage of heavy-ion collisions
• Bose-Einstein Correlations in a Space-Time Approach to e+ e- Annihilation into Hadrons
• Analysis of reaction dynamics at RHIC in a combined parton/hadron transport approach
• Deep-Inelastic Final States in a Space-Time Description of Shower Development and Hadronization
• Multiple parton interactions in high-density QCD matter
• Dynamical fragmentation of flux tubes in the Friedberg-Lee model
• High Order Perturbative QCD Approach to Multiplicity Distributions of Quark and Gluon Jets
• Event weights for simulating Bose-Einstein correlations
• Some problems of the pQCD jet calculus
• The quest for the quark-gluon plasma from the perspective of dynamical models of relativistic heavy-ion collisions
• Direct photon emission from hadronic sources: Hydrodynamics vs. Transport theory