Diffractive charm jet production at hadron colliders in the two-gluon exchange model

Abstract

We present a calculation of diffractive charm jet production at hadron colliders in perturbative QCD based on the two-gluon exchange model. Differing from the previous calculations, we abandon the use of the effective color-singlet vitual gluon simplification, and use the real gluon in the calculations for the partonic process. We find the final result is free of the linear singularities due to the small transverse momenta of the exchanged two gluons. In the leading logarithmic approximation (LLA) in QCD, this process is related to the off-diagonal gluon density in the proton. As a result, this process may provide a wide window for testing the two-gluon exchange model, and may be particularly useful in studying the small $x$ physics. In comparison, the diffractive bottom jet production is also discussed, and is found to be important only for large transverse momentum of the jet.

15pages, 7 PS figures, to appear in PRD

References in corpus (6)

• Off-Forward Parton Distributions
• The effect of off-diagonal parton distributions in diffractive vector meson electroproduction
• Energy dependence of the survival probability of large rapidity gap
• Dijet hadroproduction with rapidity gaps and QCD double logarithmic effects
• Diffractive dijet photoproduction as a probe of the off-diagonal gluon distribution
• Diffractive $\jpsi$ production through Color-Octet mechanism at hadron colliders

Cited by in corpus (8)

• Heavy quarkonium production in double Pomeron exchange processes in perturbative QCD
• Diffractive Excitation of Heavy Flavors: Leading Twist Mechanisms
• Diffractive dijet production: breakdown of factorization
• Quark initiated coherent diffractive production of muon pair and W boson at hadron colliders
• Diffractive dissociation of gluons into heavy quark-antiquark pairs in proton-proton collisions
• Diffractive D_s production in charged current DIS
• Large transverse momentum direct photon production in the coherent diffractive processes at hadron colliders
• NLO QCD Corrections to (${\gamma }^{\ast }\to Q\bar{Q}$)-Reggeon Vertex