4 papers
Sivers and Collins Effects: from SIDIS to Proton-Proton Inclusive Pion Production
M. Anselmino, M. Boglione, U. D'Alesio +4
We consider the Sivers, Collins and transversity functions as extracted from SIDIS and e+e- experimental data and investigate to what extent they might explain the large Single Spi…
Single spin asymmetries in l p --> h + X processes
M. Anselmino, M. Boglione, U. D'Alesio +3
We study the transverse single spin asymmetry (SSA), A_N, for the single inclusive process l p (transv. polarized) --> h + X, in a perturbative QCD factorization scheme with inclus…
Sivers effect in Drell-Yan processes
M. Anselmino, M. Boglione, U. D'Alesio +3
The Sivers distributions recently extracted from semi-inclusive deep inelastic scattering data [1] are used to compute estimates for Sivers asymmetries in Drell-Yan processes which…
Intrinsic parton motion soft mechanisms and the longitudinal spin asymmetry A_LL in high energy pp -> pi X
M. Anselmino, M. Boglione, U. D'Alesio +3
The longitudinal double spin asymmetry A_LL in the reaction pp --> pi X has been measured at RHIC with extremely interesting consequences. If the gluon polarization in a proton wer…