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Transversity and dihadron fragmentation functions
Alessandro Bacchetta, Marco Radici
The observation of the quark transversity distribution requires another soft object sensitive to the quark's transverse spin. Dihadron fragmentation functions represent a convenien…
Single-spin asymmetries: the Trento conventions
Alessandro Bacchetta, Umberto D'Alesio, Markus Diehl +1
During the workshop "Transversity: New Developments in Nucleon Spin Structure" (ECT*, Trento, Italy, 14-18 June 2004), a series of recommendations was put forward by the participan…
Dihadron interference fragmentation functions in proton-proton collisions
Alessandro Bacchetta, Marco Radici
We study the production of hadron pairs in proton-proton collisions, selecting pairs with large total transverse momentum with respect to the beam, and small relative transverse mo…
Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
The HERMES Collaboration
Single-spin asymmetries for semi-inclusive electroproduction of charged pions in deep-inelastic scattering of positrons are measured for the first time with transverse target polar…
Single-spin asymmetries with two-hadron fragmentation functions
Alessandro Bacchetta, Marco Radici
Using the formalism of two-hadron fragmentation functions, we discuss single-spin asymmetries occurring in the production of two hadrons in the current region of deep inelastic sca…
New observables in longitudinal single-spin asymmetries in semi-inclusive DIS
Alessandro Bacchetta, Piet J. Mulders, Fetze Pijlman
We analyze longitudinal beam and target single-spin asymmetries in semi-inclusive deep inelastic scattering and in jet deep inelastic scattering, including all possible twist-3 con…