Non-Extensive Motivated Parton Fragmentation Functions

Abstract

A new form of fragmentation function is presented here, motivated by earlier non-extensive studies of jet fragmentation. We parametrized our Tsallis-like function on pion spectra and compared it to the most common fragmentation function parametrizations. It is shown that the new form is in agreement with earlier parametrizations, furthermore, its scale evolution overlaps better with the experimental data.

Keywords

• parton model
• fragmentation
• hadronization
• QCD
• hadron spectrum
• non-extensive statistics
• DGLAP evolution
• Tsallis distribution
• e-e+ collision
• pp collision
• heavy ion collision