Isolated prompt photon pair production at hadron colliders with kt-factorization

Abstract

In the framework of the kt-factorization approach, the isolated prompt photon pair production in pp and p \bar p collisions at high energies is studied. The consideration is based on the quark-antiquark annihilation, quark-gluon scattering and gluon-gluon fusion subprocesses, where the non-zero transverse momenta of incoming partons are taken into account. The unintegrated quark and gluon densities in a proton are determined using the Kimber-Martin-Ryskin prescription. The numerical analysis covers the total and differential production cross sections and extends to specific angular correlations between the produced prompt photons. Theoretical uncertainties of our evaluations are studied and comparison with the NLO pQCD calculations is performed. The numerical predictions are compared with the recent experimental data taken by the D0, CDF, CMS and ATLAS collaborations at the Tevatron and LHC energies.

30 pages, 15 figures, 3 tables

References in corpus (41)

• A Large Mass Hierarchy from a Small Extra Dimension
• Parton distributions for the LHC
• Theories with Gauge-Mediated Supersymmetry Breaking
• Bounds on Universal Extra Dimensions
• Unintegrated parton distributions
• High-Energy Factorization and Small-X Deep Inelastic Scattering Beyond Leading Order
• QCD coherence in the structure function and associated distributions at small $x$
• Diphoton production at hadron colliders: a fully-differential QCD calculation at NNLO
• A full Next to Leading Order study of direct photon pair production in hadronic collisions
• Unintegrated parton distributions and inclusive jet production at HERA
• The CCFM Monte Carlo generator CASCADE 2.2.0
• Hadronic final state predictions from CCFM: the hadron-level Monte Carlo generator CASCADE
• Small x Phenomenology: Summary and Status
• The CCFM Monte Carlo generator CASCADE
• Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
• Small x Phenomenology - summary of the 3rd Lund Small x Workshop in 2004
• Forward Z-boson production and the unintegrated sea quark density
• Calculation of prompt diphoton production cross sections at Tevatron and LHC energies
• Beyond leading order effects in photon pair production at the Tevatron
• Measurement of direct photon pair production cross sections in ppbar collisions at sqrt(s)=1.96 TeV
• Angular correlations in multi-jet final states from kt-dependent parton showers
• Isolated prompt photon photoproduction at NLO
• Prompt photon photoproduction at HERA in the k_T-factorization approach
• Detecting a light Higgs boson at the Fermilab Tevatron through enhanced decays to photon pairs
• Prompt J/Psi production at LHC: new evidence for the kt-factorization
• Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at sqrt(s) = 7 TeV
• Measurement of the Cross Section for Prompt Diphoton Production in p-pbar Collisions at sqrt(s) = 1.96 TeV
• Single jet and prompt-photon inclusive production with multi-Regge kinematics: From Tevatron to LHC
• Prompt photon hadroproduction at high energies in the k_T-factorization approach
• Resummation effects in Higgs boson transverse momentum distribution within the framework of unintegrated parton distributions
• Search for Diphoton Events with Large Missing Transverse Energy in 7 TeV Proton-Proton Collisions with the ATLAS Detector
• Prompt photon hadroproduction at high energies in off-shell gluon-gluon fusion
• Diphoton production at Tevatron in the quasi-multi-Regge-kinematics approach
• Study of non-collinear parton dynamics in the prompt photon photoproduction at HERA
• Deep inelastic prompt photon production at HERA in the kt-factorization approach
• Prompt photon and associated heavy quark production at hadron colliders with kt-factorization
• Testing for kt-factorization with inclusive prompt photon production at LHC
• Measurement of the Cross Section for Prompt Isolated Diphoton Production in p\bar p Collisions at \sqrt{s} = 1.96 TeV
• Drell-Yan lepton pair production at high energies in the kt-factorization approach
• Inclusive J/Psi photoproduction and polarization at HERA in the kt-factorization approach
• Production and polarization of Upsilon mesons in the k_T-factorization approach in more detail

Cited by in corpus (6)

• Diphoton production at Tevatron and the LHC in the NLO* approximation of the Parton Reggeization Approach
• Application of the KMR and MRW unintegrated parton distributions to the EMC ratio of ${}^{6}Li$ nucleus in the $k_t$-factorization framework
• A detail study of the LHC and TEVATRON hadron-hadron prompt-photon pair production experiments in the angular ordering constraint k_t-factorization approaches
• An extended study of the prompt photon photoproduction at HERA with $k_T$-factorization
• Single photon production in ppBar collision in the collinear and kt-factorisation framework and investigation of their differences
• Numerical Study of MRW-Type Unintegrated Double Parton Distribution Functions from Non-Factorized DPDFs