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Anomalous dimensions of the double parton fragmentation functions

Anomalous dimensions of the double parton fragmentation functions

Double parton fragmentation is a process in which a pair of partons produced in the short-distance process hadronize into the final state hadron. This process is important for quarkonium production when the transverse momentum is much greater than the quark mass. Resummation of logarithms of the ratio of these two …