Reference : Interference Fragmentation Functions and Transverse Spin Studies.
Scientific congresses and symposiums : Unpublished conference/Abstract
Physical, chemical, mathematical & earth Sciences : Physics
Interference Fragmentation Functions and Transverse Spin Studies.
Courtoy, Aurore mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules >]
Bacchetta, Alessandro [> >]
Radici, Marco [> >]
20th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2012)
26-30 March 2012
[en] We report on the extraction of dihadron fragmentation functions (DiFF) from the semi- inclusive production of two hadron pairs in back-to-back jets in e+e− annihilation. A nonzero asymmetry in the correlation of azimuthal orientations of opposite π+π− pairs is related to the transverse polarization of fragmenting quarks through a significant polarized DiFF. A combined analysis of this asymmetry and the spin asymmetry in the SIDIS process ep↑ → e′(π+π−)X has led to the first extraction of the u and d-flavor transversity parton distribution function in the framework of collinear factorization.
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