QCD Reggeon calculus from KLWMIJ/JIMWLK evolution: Vertices, reggeization and all

Tolga Altinoluk, Carlos Contreras, Alex Kovner, Eugene Levin, Michael Lublinsky, Arthur Shulkin

Research output: Contribution to journalArticlepeer-review

Abstract

We show explicitly how the high energy QCD evolution generated by the KLWMIJ Hamiltonian can be cast in the form of the QCD Reggeon Field Theory. We show how to reduce the KLWMIJ Hamitonian to physical color singlet degrees of freedom. We suggest a natural way of defining the Pomeron and other Reggeons in the framework of the KLWMIJ evolution and derive the QCD Reggeon Field Theory Hamiltonian which includes several lowest Reggeon operators. This Hamiltonian generates evolution equations for all Reggeons in the case of dilute-dense scattering, including the nonlinear Balitsky-Kovchegov equation for the Pomeron. We also find explicit expressions for the Reggeon conjugate operators in terms of QCD operators, and derive their evolution equations. This provides a natural and unambiguous framework for reggeization procedure introduced in [4, 5]. The Bartels triple Pomeron vertex is inherited directly from the RFT Hamiltonian. For simplicity in the bulk of the paper we work in the large Nc limit.

Original languageEnglish
Article number115
JournalJournal of High Energy Physics
Volume2013
Issue number9
DOIs
StatePublished - Sep 2013

Keywords

  • Deep inelastic scattering
  • QCD
  • Resummation

Fingerprint

Dive into the research topics of 'QCD Reggeon calculus from KLWMIJ/JIMWLK evolution: Vertices, reggeization and all'. Together they form a unique fingerprint.

Cite this