Constraints on the Collins Function from New e+e !h1h2X Measurements in a Leading Order Analysis

Mariaelena Boglione, Mauro Anselmino, Umberto D'alesio, J. O.Gonzalez Hernandez, Stefano Melisa, Francesco Murgia, Alexei Prokudin

Research output: Contribution to journalConference articlepeer-review

Abstract

New data from the BaBar Collaborations, on azimuthal correlations measured for pairs of pions produced in e+e- annihilations, are analysed together with analogous, previous data from the BELLE Collaboration and with Semi-Inclusive Deep Inelastic scattering (SIDIS) data, for a simultaneous extraction of transversity and the Collins function. Special attention is devoted to the p⊥ dependence of the Collins favoured and disfavoured functions. A comparison with BESIII new measurements allows a preliminary study on the sensitivity of azimuthal asymmetries on TMD evolution effects.

Original languageEnglish (US)
Article number30
JournalProceedings of Science
Volume26-30-May-2015
StatePublished - Jan 1 2015
Event2015 QCD Evolution, QCDEV 2015 - Newport News, United States
Duration: May 26 2015May 30 2015

All Science Journal Classification (ASJC) codes

  • General

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