T-2, Nuclear and Particle Physics, Astrophysics and Cosmology

Correlations in Double Parton Scattering

Wouter Waalewijn

Double parton scattering is the process where two partonic collisions take place between the same colliding hadrons. It is a background for new physics searches at the LHC. I will discuss the formalism for double parton scattering that I helped develop. The initial state is described by double parton distribution functions, and offers a window into diparton correlations in the proton. I will discuss its renormalization group evolution, which implies that color correlations and parton-exchange interference contributions are Sudakov suppressed at high energies. In addition, I will provide an estimate of the diparton correlations using a bag model of the proton.


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