A detail study of the LHC and TEVATRON hadron-hadron prompt-photon pair production experiments in the angular ordering constraint k_t-factorization approaches

Abstract

In the present work, which is based on the k_-factorization framework, it is intended to make a detail study of the isolated prompt-photon pairs (IPPP) production in the high-energy inelastic hadron-hadron collisions differential cross section. The two scheme-dependent unintegrated parton distribution functions (UPDF) in which the angular ordering constraints (AOC) are imposed, namely the Kimber-Martin-Ryskin (KMR) and the Martin-Ryskin-Watt (MRW) approaches, in the leading and the next-to-leading orders (LO and NLO) are considered, respectively. These two prescriptions (KMR and MRW) utilize the phenomenological parton distribution functions (PDF) libraries of Martin et al, i.e. the MMHT2014. The computations are performed in accordance with the initial dynamics of latest existing experimental reports of the D0, CDF, CMS and ATLAS collaborations and the different experimental constraints. It is shown that above frameworks are capable of producing acceptable results, compared to the experimental data, the pQCD and some Monte Carlo calculations (i.e. 2γ-NNLO, SHERPA, DIPHOX and RESBOS). It is also concluded that the KMR framework produces better results in the higher center-of-mass energies, while the same thing can be argued about the LO-MRW prescription in lower energies. Additionally, these two schemes show different behavior in the regions where the fragmentation and higher pQCD effects become important. A clear prediction for the various shoulders and tails which were detected experimentally are observed and discussed in the present theoretical approaches. The possible double countings between 2 \rightarrow 2 and 2 \rightarrow 3 processes are studied.

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References in corpus (44)

• Event generation with SHERPA 1.1
• Parton distributions in the LHC era: MMHT 2014 PDFs
• Time-reversal odd distribution functions in leptoproduction
• Unintegrated parton distributions
• 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
• No Generalized TMD-Factorization in the Hadro-Production of High Transverse Momentum Hadrons
• Predictions for diphoton production at the LHC through NNLO in QCD
• NLO prescription for unintegrated parton distributions
• Unintegrated parton distributions and electroweak boson production at hadron colliders
• Measurement of isolated-photon pair production in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• TMDlib and TMDplotter: library and plotting tools for transverse-momentum-dependent parton distributions
• Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at sqrt(s) = 7 TeV
• Calculation of prompt diphoton production cross sections at Tevatron and LHC energies
• Scattering amplitudes with off-shell quarks
• Measurement of the isolated diphoton cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• The CCFM uPDF evolution uPDFevolv
• 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
• Prompt photon photoproduction at HERA in the k_T-factorization approach
• 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 isolated diphoton production using the full CDF Run II data sample
• Measurement of the differential cross sections for isolated direct photon pair production in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• On the use of the KMR unintegrated parton distribution functions
• Measurement of the Cross Section for Prompt Isolated Diphoton Production in p\bar p Collisions at \sqrt{s} = 1.96 TeV
• Diphoton production at Tevatron and the LHC in the NLO* approximation of the Parton Reggeization Approach
• The general behavior of $NLO$ unintegrated parton distributions based on the single-scale evolution and the angular ordering constraint
• Comparison of $k_T$-Factorization Approach and QCD Parton Model for Charm and Beauty Hadroproduction
• Prompt photon hadroproduction at high energies in off-shell gluon-gluon fusion
• A phenomenological interpretation of open charm production at HERA in terms of the semi-hard approach
• Diphoton production at Tevatron in the quasi-multi-Regge-kinematics approach
• Reconsideration of the inclusive prompt photon production at LHC with kt-factorization
• 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
• The $NLO$ production of the $W^{\pm }$ and $Z^0$ vector bosons via hadron collisions in the frameworks of $KMR$ and $MRW$ unintegrated parton distribution functions
• A new phenomenological Investigation of $KMR$ and $MRW$ $unintegrated$ parton distribution functions
• $KMR$ $k_t$-factorization procedure for the description of the $LHCb$ forward hadron-hadron $Z^0$ production at $\sqrt{s}=13TeV$
• LHC production of forward-center and forward-forward di-jets in the $k_t$-factorization $unintegrated$ parton distribution frameworks
• Testing for kt-factorization with inclusive prompt photon production at LHC
• Application of the KMR and MRW unintegrated parton distributions to the EMC ratio of ${}^{6}Li$ nucleus in the $k_t$-factorization framework
• Isolated prompt photon pair production at hadron colliders with kt-factorization
• The EMC ratios of ${}^{4}He$, ${}^{3}He$ and ${}^{3}H$ nuclei in the $k_t$ factorization framework using the Kimber-Martin-Ryskin unintegrated parton distribution functions
• On possible small-x effects in the Kaluza-Klein graviton and radion production at high energies

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• A validity check of the KATIE parton level event generator in the $k_t$-factorization and collinear frameworks
• A detailed study of charm content of a proton in the frameworks of the Kimber-Martin-Ryskin and Martin-Ryskin-Watt approaches
• The analysis of Drell-Yan lepton pair production in the P-P(P) colliders using different angular ordering constraints and $k_t$-factorization approach
• The P-P(P) cross-section of isolated single-photon production in the $k_t$-factorization and different angular ordering unintegrated parton distributions frameworks
• On validity of different PDFs sets using the proton $k_t$-factorization structure functions and the Gaussian $k_t$-dependence of KMR UPDFs
• Application of the constituent quark exchange model to the parton distributions and the EMC ratios of ${}^{12}C$ and ${}^{14}N$ nuclei
• Extracting the parton distribution functions evolution equations using the stochastic modeling in the non-equilibrium statistical mechanics