Transversity and inclusive two-pion production

Journal Article · Wed Jun 13 04:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2750865· OSTI ID:21064001

Radici, Marco ^[1]

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1. Dipartimento di Fisica Nucleare e Teorica, Universita di Pavia, I-27100 Pavia (Italy)

A model for dihadron fragmentation functions is briefly outlined, that describes the fragmentation of a quark in two unpolarized hadrons. The parameters are tuned to the output of the PYTHIA event generator for two-hadron semi-inclusive production in deep inelastic scattering at HERMES. Then predictions are made for the unknown polarized fragmentation function and the related single-spin asymmetry in the azimuthal distribution of {pi}+{pi}- pairs in semi-inclusive deep inelastic scattering on transversely polarized targets at HERMES and COMPASS. This asymmetry can be used to extract the quark transversity distribution.

• OSTI ID: 21064001
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 915; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
COMPUTERIZED SIMULATION
DEEP INELASTIC SCATTERING
HADRONS
HERA STORAGE RING
MULTIPARTICLE SPECTROMETERS
P CODES
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PIONS MINUS
PIONS PLUS
POLARIZATION
POLARIZED TARGETS
QUARKS
SEMI-INCLUSIVE INTERACTIONS
SPIN