Fragmentation Functions measurement at COMPASS

Abstract

Fragmentation functions represent a key ingredient to address the proton spin structure in semi-inclusive deep-inelastic scattering and proton-proton collisions. They can not be determined from perturbative Quantum Chromodynamics and have to be extracted from experimental data in different processes. The COMPASS experiment at CERN provides a large data sample and covers a wide kinematic range for precise measurement of hadron multiplicities, directly connected to fragmentation functions. Recent, full-differential results on pion and kaon multiplicities are presented and discussed

Comments: 8 pages, 5 figures, XXI International Workshop on Deep-Inelastic Scattering and Related Subjects - DIS2013, April 22-26 2013, Marseille, France