First Glances at the Transversity Parton Distribution through Dihadron Fragmentation Functions

Journal Article · Fri Jul 01 04:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.107.012001· OSTI ID:21567495

Bacchetta, Alessandro ^[1]; Courtoy, Aurore; Radici, Marco ^[2]

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1. Dipartimento di Fisica Nucleare e Teorica, Universita di Pavia, via Bassi 6, I-27100 Pavia (Italy)
2. INFN Sezione di Pavia, via Bassi 6, I-27100 Pavia (Italy)

We present first observations of the transversity parton distribution based on an analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets. The extraction of transversity relies on the knowledge of dihadron fragmentation functions, which we take from electron-positron annihilation measurements. This is the first attempt to determine the transversity distribution in the framework of collinear factorization.

• OSTI ID: 21567495
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 107; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
DEEP INELASTIC SCATTERING
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FACTORIZATION
FRAGMENTATION
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MESONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
POLARIZED TARGETS
PSEUDOSCALAR MESONS
SCATTERING
TARGETS