Cronin effect, dipoles and unitarity in pA and dA collisions
by
Alberto Accardi (Columbia University NY)
→
Europe/Zurich
TH Auditorium (CERN)
TH Auditorium
CERN
Description
I will consider the Cronin effect on hadron production in pA and dA collisions in a pQCD framework including semihard parton rescatterings. The Cronin enhancement results from pT broadening of incoming partons due to multiple scatterings. Inclusion of pQCD rescatterings leads to unitarization of the interaction, and may be interpreted as multiple scatterings of a colour dipole on a nuclear target. This allows a comparison to saturation models for minijet production. Results of the semihard rescattering model will be compared to Fermilab and RHIC data on the Cronin effect.