Speaker
Francesca Giordano
(UIUC)
Description
Fragmentation functions (FFs) describe the formation of final state
particles from a partonic initial state and are directly related to
the intriguing QCD phenomenon of confinement.
Precise knowledge of these functions is a key
ingredient in accessing quantities such as the nucleon spin structure
in semi-inclusive deep inelastic scattering and proton-proton collisions.
However, fragmentation functions can currently not be
determined from Quantum Chromodynamics first principles and have to be
extracted from experimental data. The Belle experiment at KEK, Japan,
provides a large data sample for high precision measurements
of unpolarized and polarized fragmentation functions.
Here, the current status of the unpolarized and spin dependent FF
measurements at Belle will be presented.
Author
Francesca Giordano
(UIUC)
