Status on the transversity parton distribution: the dihadron fragmentation functions way
Abstract
We report on the extraction of dihadron fragmentation functions (DiFF) from the semiinclusive 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 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 has led to the first extraction of the u and d-flavor transversity parton distribution function in the framework of collinear factorization.
Keywords
Cite
@article{arxiv.1206.1836,
title = {Status on the transversity parton distribution: the dihadron fragmentation functions way},
author = {A. Courtoy and Alessandro Bacchetta and Marco Radici},
journal= {arXiv preprint arXiv:1206.1836},
year = {2012}
}
Comments
To appear in the proceedings of the XX International Workshop on Deep-Inelastic Scattering, Bonn, Germany, March 26-30, 2012 and of the Sixth International Conference on Quarks and Nuclear Physics, Palaiseau, France, April 16-20, 2012. Contain DISproc.cls and .bst