Sean Fleming, Adam K. Leibovich, Thomas Mehen, Ira Z. Rothstein
Published 2013-01-16Version 1
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 scales requires the evolution equations for double parton fragmentation functions (DPFF). In this paper we complete the one-loop evaluation of the anomalous dimensions for the DPFF. We also consider possible mixing between the DPFF and single parton power suppressed gluon fragmentation and show that such effects are sub-leading.
Anomalous dimensions of quark masses in the three-loop approximation
Beta functions and anomalous dimensions up to three loops
$α_s$ from hadron multiplicities via SUSY-like relation between anomalous dimensions
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