Transversity and collins fragmentation functions: Towards a new global analysis

M. Anselmino, M. Boglione, U. D'Alesio, A. Kotzinian, S. Melis, F. Murgia, A. Prokudin, C. Türk

Research output: Contribution to conferencePaper

Abstract

A new, preliminary global analysis of the experimental data on azimuthal asymmetries in SIDIS from HERMES and COMPASS collaborations, and in e +e- → h1h2X processes from the BELLE collaboration, is performed. The new data allow for a more precise determination of the Collins fragmentation function and of the transversity distribution function for u and d quarks, in comparison with the results of our previous analysis. Estimates for the single spin asymmetry A sin(φh+φS)UT at JLab and COMPASS, operating on a transversely polarized proton target, are presented.

Original languageEnglish (US)
StatePublished - Dec 1 2008
Event16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008 - London, United Kingdom
Duration: Apr 7 2008Apr 11 2008

Other

Other16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008
CountryUnited Kingdom
CityLondon
Period4/7/084/11/08

Fingerprint

COMPASS (programming language)
fragmentation
asymmetry
distribution functions
quarks
protons
estimates

All Science Journal Classification (ASJC) codes

  • Radiation

Cite this

Anselmino, M., Boglione, M., D'Alesio, U., Kotzinian, A., Melis, S., Murgia, F., ... Türk, C. (2008). Transversity and collins fragmentation functions: Towards a new global analysis. Paper presented at 16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008, London, United Kingdom.
Anselmino, M. ; Boglione, M. ; D'Alesio, U. ; Kotzinian, A. ; Melis, S. ; Murgia, F. ; Prokudin, A. ; Türk, C. / Transversity and collins fragmentation functions : Towards a new global analysis. Paper presented at 16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008, London, United Kingdom.
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Anselmino, M, Boglione, M, D'Alesio, U, Kotzinian, A, Melis, S, Murgia, F, Prokudin, A & Türk, C 2008, 'Transversity and collins fragmentation functions: Towards a new global analysis', Paper presented at 16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008, London, United Kingdom, 4/7/08 - 4/11/08.

Transversity and collins fragmentation functions : Towards a new global analysis. / Anselmino, M.; Boglione, M.; D'Alesio, U.; Kotzinian, A.; Melis, S.; Murgia, F.; Prokudin, A.; Türk, C.

2008. Paper presented at 16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008, London, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Transversity and collins fragmentation functions

T2 - Towards a new global analysis

AU - Anselmino, M.

AU - Boglione, M.

AU - D'Alesio, U.

AU - Kotzinian, A.

AU - Melis, S.

AU - Murgia, F.

AU - Prokudin, A.

AU - Türk, C.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - A new, preliminary global analysis of the experimental data on azimuthal asymmetries in SIDIS from HERMES and COMPASS collaborations, and in e +e- → h1h2X processes from the BELLE collaboration, is performed. The new data allow for a more precise determination of the Collins fragmentation function and of the transversity distribution function for u and d quarks, in comparison with the results of our previous analysis. Estimates for the single spin asymmetry A sin(φh+φS)UT at JLab and COMPASS, operating on a transversely polarized proton target, are presented.

AB - A new, preliminary global analysis of the experimental data on azimuthal asymmetries in SIDIS from HERMES and COMPASS collaborations, and in e +e- → h1h2X processes from the BELLE collaboration, is performed. The new data allow for a more precise determination of the Collins fragmentation function and of the transversity distribution function for u and d quarks, in comparison with the results of our previous analysis. Estimates for the single spin asymmetry A sin(φh+φS)UT at JLab and COMPASS, operating on a transversely polarized proton target, are presented.

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M3 - Paper

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Anselmino M, Boglione M, D'Alesio U, Kotzinian A, Melis S, Murgia F et al. Transversity and collins fragmentation functions: Towards a new global analysis. 2008. Paper presented at 16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008, London, United Kingdom.