Modeling dihadron fragmentation functions

2006/08/03 by Alessandro Bacchetta, Marco Radici · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.74.114007

published as Phys.Rev.D74:114007,2006 · 16 pages, 10 figures

arxiv created 2006/08/03 · openalex publication_date 2006/12/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a model for dihadron fragmentation functions, describing the fragmentation of a quark into two unpolarized hadrons. We tune the parameters of our model to the output of the PYTHIA event generator for two-hadron semi-inclusive production in deep-inelastic scattering at HERMES. Once the parameters of the model are fixed, we make predictions for other unknown fragmentation functions and for a single-spin asymmetry in the azimuthal distribution of \ensuremathπ⁺\ensuremathπ^\ensuremath- pairs in semi-inclusive deep-inelastic scattering on a transversely polarized target at HERMES and COMPASS. Such asymmetry could be used to measure the quark transversity distribution function.

Citations

• Two-hadron semi-inclusive production including subleading twist contributions
• Fragmentation of transversely polarized quarks probed in transverse momentum distributions
• Monte Carlo simulation of the Sivers effect in high-energy proton-proton collisions
• Search for Jet Handedness in HadronicZ0Decays
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs ine+e−Annihilation at Belle

Cited by

• Observation of Transverse Polarization Asymmetries of Charged Pion Pairs ine+e−Annihilation nears=10.58 GeV