Double parton scattering of hadron-hadron interaction and its gluonic contribution
Hung Hsiang Liu
Abstract
We propose a formalism for calculating the event cross-section of parton interactions. In this formalism, we use the light-front bound-state wave function to expand scattering initial state. This leads to an expression of the cross-section in terms of square of wave functions which can be used to define the parton distribution functions. The probability interpretation of the partonic interactions among hadron-hadron scattering is naturally achieved. We apply this formalism to calculate the 4-particle final state cross-section for single parton, double parton and gluon splitting interactions. We compare the behaviors of these cross sections and propose a method for experiments to differentiate these interactions.
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