Characteristics and Estimates of Double Parton Scattering at the Large Hadron Collider

Understand

We evaluate the kinematic distributions in phase space of 4-parton final-state subprocesses produced by double parton scattering, and we contrast these with the final-state distributions that originate from conventional single parton scattering.

• Our goal is to establish the distinct topologies of events that arise from these two sources and to provide a methodology for experimental determination of the relative magnitude of the double parton and single parton contributions at Large Hadron Collider energies.
• We examine two cases in detail, the $b \bar{b} \rm{jet jet}$ and the 4 jet final states.
• After full parton-level simulations, we identify a few variables that separate the two contributions remarkably well, and we suggest their use experimentally for an empirical measurement of the relative cross section.