Abstract
Quantum Chromodynamics (QCD) is the correct theory of strong interactions. The main direction of investigations in physics of elementary particles and nuclear physics is testing of QCD. QCD predicts that at high energy density there will be a transformation from ordinary nuclear matter to a plasma of free quarks and gluons, the Quark-Gluon Plasma (QGP). In order to reach new knowledge of QCD from the interaction of relativistic heavy ions, one needs directly comparable data sets from systems of various sizes, different energies and different experimental probes. Lepton-nucleus scattering provides a nontrivial possibility to study space-time evolution of jets inside the nuclear matter. Using QCD-inspired time dependent cross sections for pre-hadrons we have introduced a space-time model for propagation and hadronization of quark and gluon jets in the nuclear matter in DIS. The aim of this work is to examine a multiproduction process of charged-current deep inelasticvμ-nucleus and nuclear emulsion scattering and estimate quantitatively the value of the formation time. These studies may help to explain the jet quenching in heavy ion collisions. In conclusion, the role of neutrino generators in modern neutrino experiments with nuclear targets will be discussed.
Highlights
The interactions of relativistic heavy ion collisions provide the necessary conditions to investigate many problems: manifestations of quark and gluon degrees of freedom in nuclei, phase transition between ordinary matter and hadron matter of high energy density, and so on [1, 2]
The multiparticle production in ultra-relativistic heavy ion collisions is an important tool to study the perturbative as well as non-perturbative nature of Quantum Chromodynamics (QCD). This opportunity will be explored with the Nuclotron (JINR, Dubna), and with the accelerators, the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC)
Enormous data have been collected by RHIC and LHC from various types of collisions over a wide range of center-of-mass energy
Summary
The interactions of relativistic heavy ion collisions provide the necessary conditions to investigate many problems: manifestations of quark and gluon degrees of freedom in nuclei, phase transition between ordinary matter and hadron matter of high energy density, and so on [1, 2]. The products of each projectile collision may interact with other nucleons of the nucleus and produce more particles. Analyzing the data on multiparticle production in hadron-nucleus interactions at high energy it has turned out that cascading of secondaries is considerably lower than the expected one under the assumption that a secondary pion is able to interact at once after it has been produced in a nucleon-nucleon collision.
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