Constraints on Regge models from perturbation theory

Jorge Mondejar, Antonio Pineda

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)

Abstract

We study the constraints that the operator product expansion imposes on large N c inspired QCD models for current-current correlators. We focus on the constraints obtained by going beyond the leading-order parton computation. We explicitly show that, assumed a given mass spectrum: linear Regge behavior in n (the principal quantum number) plus corrections in 1/n, we can obtain the logarithmic (and constant) behavior in n of the decay constants within a systematic expansion in 1/n. Our example shows that it is possible to have different large n behavior for the vector and pseudo-vector mass spectrum and yet comply with all the constraints from the operator product expansion. © SISSA 2007.
Original languageEnglish
Article number061
JournalJournal of High Energy Physics
Volume2007
Issue number10
DOIs
Publication statusPublished - 1 Oct 2007

Keywords

  • Asymptotic freedom
  • Phenomenological models
  • QCD
  • Sum rules

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