Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: Real corrections

R. Boussarie, A. V. Grabovsky, L. Szymanowski, S. Wallon

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We studied the ep→ep+2 jets diffractive cross section with ZEUS phase space. Neglecting the t-channel momentum in the Born and gluon dipole impact factors, we calculated the corresponding contributions to the cross section differential in β=Q2Q2+M2 jets2 and the angle φ between the leptonic and hadronic planes. The gluon dipole contribution was obtained in the exclusive kt-algorithm with the exclusive cut ycut=0.15 in the small ycut approximation. In the collinear approximation we canceled singularities between real and virtual contributions to the qq̄ dipole configuration, keeping the exact ycut dependency. We used the Golec-Biernat-Wüsthoff (GBW) parametrization for the dipole matrix element and linearized the double dipole contributions. The results give roughly 12 of the observed cross section for small β and coincide with it for large β.

Original languageEnglish
Article number074020
JournalPhysical Review D
Volume100
Issue number7
DOIs
Publication statusPublished - 18 Oct 2019

Keywords

  • DEEP-INELASTIC SCATTERING
  • NONLINEAR GLUON EVOLUTION
  • COLOR GLASS CONDENSATE
  • LEADING PROTON
  • FACTORIZATION
  • EQUATION
  • JETS

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