Diphoton production at Tevatron in the quasi-multi-Regge-kinematics approach

Abstract

We study the production of prompt diphotons in the central region of rapidity within the framework of the quasi-multi-Regge-kinematics approach applying the hypothesis of quark and gluon Reggeization. We describe accurately and without free parameters the experimental data which were obtained by the CDF Collaboration at the Tevatron Collider. It is shown that the main contribution to studied process is given by the direct fusion of two Reggeized gluons into a photon pair, which is described by the effective Reggeon-Reggeon to particle-particle vertex. The contribution from the annihilation of Reggeized quark-antiquark pair into a diphoton is also considered. At the stage of numerical calculations we use the Kimber-Martin-Ryskin prescription for unintegrated quark and gluon distribution functions, with the Martin-Roberts-Stirling-Thorne collinear parton densities for a proton as input.

12 pages, 3 figures

References in corpus (7)

• Charmonium Production at High Energy in the k_T-Factorization Approach
• Measurement of photon+b+X and photon+c+X production cross sections in ppbar collisions at sqrt(s)=1.96 TeV
• Bottomonium Production in the Regge Limit of QCD
• NLO inclusive jet production in $k_T$--factorization
• Prompt photon photoproduction at HERA within the framework of the quark Reggeization hypothesis
• Deep inelastic scattering and prompt photon production within the framework of quark Reggeization hypothesis
• Open charm production at high energies and the quark Reggeization hypothesis

Cited by in corpus (15)

• Dijet azimuthal decorrelations at the LHC in the parton Reggeization approach
• Forward Z-boson production and the unintegrated sea quark density
• Prompt J/psi production in the Regge limit of QCD: From Tevatron to LHC
• Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at sqrt(s) = 7 TeV
• Drell-Yan lepton pair production at high energies in the Parton Reggeization Approach
• Single jet and prompt-photon inclusive production with multi-Regge kinematics: From Tevatron to LHC
• Diphoton production at Tevatron and the LHC in the NLO* approximation of the Parton Reggeization Approach
• Inclusive b-jet and b\bar b-dijet production at the LHC via Reggeized gluons
• A new phenomenological Investigation of $KMR$ and $MRW$ $unintegrated$ parton distribution functions
• Prompt Upsilon(nS) production at the LHC in the Regge limit of QCD
• Exploring minijets beyond the leading power
• A detail study of the LHC and TEVATRON hadron-hadron prompt-photon pair production experiments in the angular ordering constraint k_t-factorization approaches
• Isolated prompt photon pair production at hadron colliders with kt-factorization
• Single isolated photon production in the NLO${}^{\star }$ approximation of the Parton Reggeization Approach
• On the possibility to detect the Higgs decay $H\to b\bar{b}$ in the associated $Z+b\bar{b}$ production at the LHC