A short review of some double-parton scattering processes

Understand

A few examples of quickly developing field of double parton scattering are discussed.

• We present arguments that the production of two pairs of charm quark-antiquark is the golden reaction to study the double parton scattering effects.
• We discuss briefly also mechanism of single parton scattering and show that it gives much smaller contribution to the $c \bar c c \bar c$ final state.
• In this context we discuss also the contribution of perturbative parton-splitting mechanism which should also be added to the conventional DPS mechanism.