FRAGMENTATION AND HADRONIZATION

Fragmentation and Hadronization

Hadronic jets are amongst the most striking phenomena in high-energy physics, and their importance is sure to persist as searching for new physics at hadron colliders becomes the main activity in our field. Signatures involving jets almost always have the largest cross sections but are the most difficult to interpret and to distinguish from background. Insight into the properties of jets is the...

Hadronization in heavy-ion collisions: recombination and fragmentation of partons.

We argue that the emission of hadrons with transverse momentum up to about 5 GeV/c in central relativistic heavy ion collisions is dominated by recombination, rather than fragmentation of partons. This mechanism provides a natural explanation for the observed constant baryon-to-meson ratio of about one and the apparent lack of a nuclear suppression of the baryon yield in this momentum range. Fr...

Hadronization Corrections to Helicity Components of the Fragmentation Function

Hadronization in Polarized Semi-Inclusive DIS: the Question of Independent Fragmentation

The new formalism for description of (un)polarized semi-inclusive DIS at moderate energies is developed. Hadron production is modeled as a product of distribution functions and hadronization functions (HFs) weighted by the hard scattering cross sections, as it is done in the LEPTO event generator. The correct treatment of polarization effects shows that description of semi-inclusive DIS within ...

Nonextensive boltzmann equation and hadronization.

We present a novel nonextensive generalization of the Boltzmann equation. We investigate the evolution of the one-particle distribution in this framework. The stationary solution is exponential in a nonlinear function of the original energy. The total energy is composed using a general, associative nonextensive rule. We propose that for describing the hadronization of quark matter such rules ma...