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Using the framework that interpolates between the leading power limit of the Color Glass Condensate and the High Energy (or $k_{T}$) factorization we calculate the direct component of the forward dijet production in ultra-peripheral…

High Energy Physics - Phenomenology · Physics 2017-06-28 P. Kotko , K. Kutak , S. Sapeta , A. M. Stasto , M. Strikman

Massless diquark jet and gluon jet productions at large transverse momentum in the coherent diffractive processes at hadron colliders are studied in the two-gluon exchange parametrization of the Pomeron model. We use the helicity amplitude…

High Energy Physics - Phenomenology · Physics 2009-10-31 Feng Yuan , Kuang-Ta Chao

Inspired by the recent measurements of the CMS collaboration, we report a QCD study of dijet production in proton+lead collisions at the LHC involving large-transverse-momentum jets, $p_T \gtrsim 100$ GeV. Examining the inherent…

High Energy Physics - Phenomenology · Physics 2015-06-17 Kari J. Eskola , Hannu Paukkunen , Carlos A. Salgado

We discuss prompt production of $J/\psi$ mesons in proton-proton collisions at the $\sqrt{s}$ $=$ $68.5$ $GeV$ energy within NRQCD $k_t$-factorization approach using different unintegrated gluon distributions functions (UGDFs). We include…

High Energy Physics - Phenomenology · Physics 2025-03-31 Anna Cisek , Antoni Szczurek

The rates for diffractive quarkonium plus prompt-photon associated production at the LHC are estimated. The theoretical framework considered in the J/Psi (or Upsilon) production associated with a direct photon at the hadron collider is the…

High Energy Physics - Phenomenology · Physics 2010-01-15 M. B. Gay Ducati , M. M. Machado , M. V. T. Machado

We calculate the cross sections for both electromagnetic and diffractive dissociation of protons for semiexclusive production of $J/\psi$ mesons in proton-proton collisions at the LHC. Several differential distributions in missing mass…

High Energy Physics - Phenomenology · Physics 2017-04-26 Anna Cisek , Wolfgang Schäfer , Antoni Szczurek

The diffractive program of the CDF Collaboration at the Fermilab Tevatron p-pbar collider is reviewed with emphasis on recent results from Run II at a c.m.s. energy of 1.96 TeV. Results are presented on the x-Bjorken and Q^2 dependence of…

High Energy Physics - Phenomenology · Physics 2010-05-12 Konstantin Goulianos

In this contribution, we summarize NLO pQCD predictions for inclusive and diffractive dijet photoproduction in Pb-Pb UPCs at the LHC. We demonstrate that the theory describes well the preliminary ATLAS data on the inclusive cross section,…

High Energy Physics - Phenomenology · Physics 2024-03-27 V. Guzey

In this contribution we study for the first time the prompt photon production in single and double diffractive processes considering the resolved Pomeron model. We estimate the rapidity and transverse momentum dependence of the cross…

High Energy Physics - Phenomenology · Physics 2013-10-25 C. Brenner Mariotto , V. P. Goncalves

We report measurements of hard diffractive processes performed by the CDF collaboration in proton-antiproton collisions at the Fermilab Tevatron collider at $\sqrt{s}$=1960 GeV. The characteristics of the diffractive structure function from…

High Energy Physics - Phenomenology · Physics 2007-05-23 Christina Mesropian

We present the extraction of unpolarized quark transverse momentum dependent parton distribution functions (TMDPDFs) and the non-perturbative part of TMD evolution kernel from the global analysis of Drell-Yan and $Z$-boson production data.…

High Energy Physics - Phenomenology · Physics 2019-06-26 Valerio Bertone , Ignazio Scimemi , Alexey Vladimirov

The results of phenomenological studies of top-quark pair production in proton-proton collisions are presented. Differential cross sections are calculated in perturbative QCD at approximate next-to-next-to-leading order ${\cal…

High Energy Physics - Phenomenology · Physics 2015-06-19 Marco Guzzi , Katerina Lipka , Sven-Olaf Moch

We present a study within the kT-factorisation scheme on single bottom quark production at the LHC. In particular, we calculate the rapidity and transverse momentum differential distributions for single bottom quark/anti-quark production.…

High Energy Physics - Phenomenology · Physics 2015-10-28 Grigorios Chachamis , Michal Deak , Martin Hentschinski , German Rodrigo , Agustin Sabio Vera

We discuss Drell-Yan production of dileptons at high energies in forward rapidity region in a hybrid high-energy approach. This approach uses unintegrated gluon distributions in one proton and collinear quark/antiquark distributions in the…

High Energy Physics - Phenomenology · Physics 2016-07-04 Antoni Szczurek , Wolfgang Schaefer

We present LO, NLO and NNLO sets of parton distribution functions (PDFs) of the proton determined from global analyses of the available hard scattering data. These MMHT2014 PDFs supersede the `MSTW2008' parton sets, but are obtained within…

High Energy Physics - Phenomenology · Physics 2015-06-11 L. A. Harland-Lang , A. D. Martin , P. Motylinski , R. S. Thorne

We discuss central exclusive diffractive dihadron production in proton-proton collisions at high energies. The calculation is based on a tensor pomeron model and the amplitudes for the processes are formulated in an effective…

High Energy Physics - Phenomenology · Physics 2017-11-02 Piotr Lebiedowicz , Otto Nachtmann , Antoni Szczurek

Parton distribution functions (PDFs) are nonperturbative quantities describing the relation between a hadron and quarks and gluons within it. We propose to extract PDFs from QCD global analysis of "data" generated by lattice QCD…

High Energy Physics - Phenomenology · Physics 2018-10-24 Yan-Qing Ma , Jian-Wei Qiu

We summarize the formalism for calculating the exclusive dijet production in $e p \to e^{\prime} jj p$ in collinear QCD factorization, using generalized parton distributions as the soft hadronic input modeled in the double distribution…

High Energy Physics - Phenomenology · Physics 2026-05-19 Trambak Jyoti Chall , Marta Łuszczak , Wolfgang Schäfer , Antoni Szczurek

We describe the current status of the diffractive vector meson production calculations within the k_t-factorization approach. Since the amplitude of the vector meson production off a proton is expressed via the differential gluon structure…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. P. Ivanov , N. N. Nikolaev

We investigate the prompt photon photoproduction at HERA within the framework of kt-factorization QCD approach. Our consideration is based on the off-shell matrix elements for the underlying partonic subprocesses. The unintegrated parton…

High Energy Physics - Phenomenology · Physics 2011-06-27 A. V. Lipatov , N. P. Zotov
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