Anomalous dimensions of the double parton fragmentation functions

Sean Fleming, Adam K. Leibovich, Thomas Mehen, Ira Z. Rothstein

Research output: Contribution to journalArticle

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Abstract

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 subleading.

Original languageEnglish (US)
Article number074022
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume87
Issue number7
DOIs
StatePublished - Apr 23 2013

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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