645 citations · 7.2k across the 124 of their papers we have counts for
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Two-hadron semi-inclusive production including subleading twist
Alessandro Bacchetta, Marco Radici
We extend the analysis of two-hadron fragmentation functions to the subleading twist, discussing also the issue of color gauge invariance. Our results can be used anywhere two unpo…
Azimuthal single spin asymmetries in SIDIS in the light of chiral symmetry breaking
P. Schweitzer, A. Bacchetta
An attempt is made to understand the z-dependence of the azimuthal single spin asymmetries observed by the HERMES collaboration in terms of chiral models based on effective quark a…
Sivers function in a spectator model with axial-vector diquarks
Alessandro Bacchetta, Andreas Schaefer, Jian-Jun Yang
We perform a calculation of the Sivers function in a spectator model of the nucleon, with scalar and axial-vector diquarks. We make use of gluon rescattering to produce the nontriv…
Collins fragmentation function from gluon rescattering
Alessandro Bacchetta, Andreas Metz, Jian-Jun Yang
We estimate the Collins fragmentation function by introducing the effect of gluon rescattering in a model calculation of the fragmentation process. We include all necessary diagram…