Transversity and Collins Functions: from e+ e- --> h1 h2 X to SIDIS Processes
M. Anselmino (1), M. Boglione (1), U. D'Alesio (2), A. Kotzinian (3),, F. Murgia (2), A. Prokudin (1), C. Turk (1) ((1) University, INFN, Torino,, Italy, (2) University, INFN Cagliari, Italy, (3) Yerevan Physics, Institute, Armenia, JINR, Dubna, Russia)
TL;DR
This paper provides the first combined analysis of transversity and Collins functions by integrating data from SIDIS experiments and e+ e- annihilation, advancing understanding of nucleon spin structure.
Contribution
It introduces a simultaneous extraction method for transversity and Collins functions using diverse experimental data, a novel approach in the field.
Findings
Successful combined fit of SIDIS and e+ e- data
First extraction of transversity and Collins functions together
Enhanced understanding of spin-dependent fragmentation processes
Abstract
We present [1] the first simultaneous extraction of the transversity distribution and the Collins fragmentation function, obtained through a combined analysis of experimental data on azimuthal asymmetries in semi-inclusive deep inelastic scattering (SIDIS), from the HERMES and COMPASS Collaborations, and in e+ e- --> h1 h2 X processes, from the Belle Collaboration.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research