Asymmetries involving dihadron fragmentation functions: from DIS to e+ e- annihilation

Bacchetta, Alessandro; Radici, M; Mukherjee, Asmita; Ceccopieri, Federico

doi:10.1103/PhysRevD.79.034029

Asymmetries involving dihadron fragmentation functions: from DIS to e+ e- annihilation

Journal Article · Thu Jan 01 04:00:00 EST 2009 · Preprint to be distributed

DOI:https://doi.org/10.1103/PhysRevD.79.034029· OSTI ID:956250

Bacchetta, Alessandro; Radici, M; Mukherjee, Asmita; Ceccopieri, Federico

Using a model calculation of dihadron fragmentation functions, we fit the spin asymmetry recently extracted by HERMES for the semi-inclusive pion pair production in deep-inelastic scattering on a transversely polarized proton target. By evolving the obtained dihadron fragmentation functions, we make predictions for the correlation of the angular distributions of two pion pairs produced in electron-positron annihilations at BELLE kinematics. Our study shows that the combination of two-hadron inclusive deep-inelastic scattering and electron-positron annihilation measurements can provide a valid alternative to Collins effect for the extraction of the quark transversity distribution in the nucleon.

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Research Organization:: Thomas Jefferson Lab National Accelerator Facility

Sponsoring Organization:: USDOE

OSTI ID:: 956250

Report Number(s):: JLAB-THY-08-917; 0812.0611; DOE/OR/23177-0559

Journal Information:: Preprint to be distributed, Journal Name: Preprint to be distributed

Country of Publication:: United States

Language:: English

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