Transversity and Collins Fragmentation Functions: Towards a New Global Analysis

Journal Article · Tue Aug 04 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3215690· OSTI ID:21316954

Anselmino, M; Boglione, M; Melis, S; Prokudin, A ^[1]; D'Alesio, U ^[2]; Kotzinian, A ^[3]; JINR, 141980 Dubna ^[4]; Murgia, F ^[5]

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1. Dipartimento di Fisica Teorica, Universita di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
2. Dipartimento di Fisica, Universita di Cagliari, Cittadella Universitaria di Monserrato, I-09042 Monserrato (Italy)
3. CEA-Saclay IRFU/Service de Physique Nucleaire, 91191 Gif-sur-Yvette (France)
4. Russian Federation
5. INFN, Sezione di Cagliari, C.P. 170, I-09042 Monserrato (Italy)

We present an update of a previous global analysis of the experimental data on azimuthal asymmetries in semi-inclusive deep inelastic scattering (SIDIS), from the HERMES and COMPASS Collaborations, and in e{sup +}e{sup -}{yields}h{sub 1}h{sub 2}X processes, from the Belle Collaboration. Compared to the first extraction, a more precise determination of the Collins fragmentation function and the transversity distribution function for u and d quarks is obtained.

• OSTI ID: 21316954
• Journal Information: AIP Conference Proceedings, Vol. 1149, Issue 1; Conference: 18. international spin physics symposium, Charlottesville, VA (United States), 6-11 Oct 2008; Other Information: DOI: 10.1063/1.3215690; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
CERN
D QUARKS
DEEP INELASTIC SCATTERING
DISTRIBUTION FUNCTIONS
ELECTRON-POSITRON INTERACTIONS
HERA STORAGE RING
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
QUANTUM CHROMODYNAMICS
SEMI-INCLUSIVE INTERACTIONS
U QUARKS