Speaker
Prof.
Oleg Teryaev
(JINR)
Description
The (semi) exclusive pion-nucleon Drell-Yan processes with different non-perturbative QCD ingredients are considered. The classical one involves proton Generalized parton distribution (GPD) and pion distribution amplitude, while another one invloves proton and pion GPDs. For the first mechanism collinear factorization holds while for the second one the analytic continuation may be applied. The possible cancellations between different cuts are discusssed. The contributions of both mechanisms (and interference in the case of transitional GPD for the first mechanism) are clculated at Born level. The generalization to gluon GPDs case and central exclusive Higgs production is discussed,
Primary author
Prof.
Oleg Teryaev
(JINR)
Co-author
Mr
Alexey Pivovarov
(JINR)
