26-30 March 2012
University of Bonn
Europe/Berlin timezone

Fragmentation functions at Belle

28 Mar 2012, 09:30
25m
Lecture Hall, Institute for Physical Chemistry (University of Bonn)

Lecture Hall, Institute for Physical Chemistry

University of Bonn

Spin physics Spin physics

Speaker

Mr Martin Leitgab (University of Illinois at Urbana-Champaign)

Description

Fragmentation functions (FFs) describe the formation of final state particles from a partonic initial state. 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 first principles Quantum Chromodynamics and have to be extracted from experimental data. The Belle experiment at KEK, Japan, provides a large data sample for high precision measurements of quantities allowing for first-time or more precise extractions of fragmentation functions. Completed and ongoing analyses for extractions of spin-independent (unpolarized FFs) as well as spin-dependent fragmentation functions (Collins and Interference FFs) at Belle will be presented.

Primary author

Mr Martin Leitgab (University of Illinois at Urbana-Champaign)

Co-authors

Mr Akio Ogawa (BNL) Mr Anselm Vossen (Indiana University Bloomington) Mrs Charlotte Hulse (The University of the Basque Country) Mrs Francesca Giordano (University of Illinois at Urbana-Champaign) Mr Gunar Schnell (The University of the Basque Country) Mr Matthias Grosse Perdekamp (University of Illinois at Urbana-Champaign) Mr Noriaki Kobayashi (Tokyo Institute of Technology) Mr Ralf Seidl (RIKEN) Mr Toshi-Aki Shibata (Tokyo Institute of Technology) Mr Yoshiyuki Miyachi (Tokyo Institute of Technology)

Presentation Materials