Fragmentation Functions at Belle

Leitgab, Martin; Belle Collaboration

doi:10.3204/DESY-PROC-2012-02/64

Contribution to a conference proceedings/Internal Report

PUBDB-2016-00969

Fragmentation Functions at Belle

Leitgab, M. ; Belle Collaboration (Collaboration author)

2012
Deutsches Elektronen-Synchrotron, DESY Hamburg

20th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2012, Bonn, Germany, 26 Mar 2012 - 30 Mar 2012 Hamburg : Deutsches Elektronen-Synchrotron, DESY 955-958 (2012) [10.3204/DESY-PROC-2012-02/64]

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2012-02/64

Report No.: arXiv:1210.2137

Abstract: 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 on e^{+}e^{-} annihilations allowing for first-time or more precise extractions of fragmentation functions. Analyses for extractions of spin-independent (unpolarized FFs) as well as spin-dependent fragmentation functions (interference FFs) at Belle are presented.

Keyword(s): nucleon: spin ; electron positron: annihilation ; fragmentation function ; BELLE

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