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We present hadron-level predictions from the Monte Carlo generator Cascade and parton level calculations of open b quark, b-flavored hadron and inclusive b-jet production in the framework of the kt-factorization QCD approach for the LHC…

High Energy Physics - Phenomenology · Physics 2013-02-11 H. Jung , M. Kraemer , A. V. Lipatov , N. P. Zotov

The amplitude for production of a single photon associated with quark pair in the fusion of two off-shell gluons is calculated. The matrix element found is applied to the inclusive prompt photon hadroproduction at high energies in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. P. Baranov , A. V. Lipatov , N. P. Zotov

We discuss charm quark/antiquark and charmed meson production in association with one extra jet (gluon, quark, antiquark) at the LHC. The calculations are performed both in collinear and $k_T$-factorization approaches. Different…

High Energy Physics - Phenomenology · Physics 2017-01-04 Rafal Maciula , Antoni Szczurek

To study the heavy quark production processes, we use the transverse momentum dependent (TMD, or unintegrated) gluon distribution function in a proton obtained recently using the Kimber-Martin-Ryskin prescription from the Bessel-inspired…

High Energy Physics - Phenomenology · Physics 2021-10-04 A. V. Kotikov , A. V. Lipatov , P. Zhang

We discuss diffractive production of heavy mesons at the LHC. The differential cross sections for single- and central-diffractive mechanisms for $c\bar c$ pair production are calculated in the framework of the Ingelman-Schlein model…

High Energy Physics - Phenomenology · Physics 2016-07-01 Marta Luszczak , Antoni Szczurek

We reconsider the inclusive production of isolated prompt photons in $pp$ collisions at the LHC energies in the framework of $k_T$-factorization approach. Our analysis is based on the ${\cal O}(\alpha \alpha_s)$ off-shell (depending on the…

High Energy Physics - Phenomenology · Physics 2016-08-17 A. V. Lipatov , M. A. Malyshev

We present our study of the differential cross section for the Higgs boson production in $k_T$-factorization framework. The $k_T$-factorization formalism includes a convolution over unintegrated parton distribution functions (uPDF) and…

High Energy Physics - Phenomenology · Physics 2016-11-01 Vaibhav S. Rawoot , Rashidul Islam , Mukesh Kumar

We discuss the single diffractive production of $c \bar c$ pairs and charmed mesons at the LHC. For a first time we propose a $k_t$-factorization approach to the diffractive processes. The transverse momentum dependent diffractive parton…

High Energy Physics - Phenomenology · Physics 2017-03-08 Marta Luszczak , Rafal Maciula , Antoni Szczurek , Maciej Trzebinski

In the framework of the kt-factorization approach, we study the production of prompt photons and electroweak gauge bosons in high energy proton-(anti)proton collisions at modern colliders. Our consideration is based on the amplitude for the…

High Energy Physics - Phenomenology · Physics 2010-01-29 A. V. Lipatov , N. P. Zotov

We investigate the inclusive and jet production rates of $b-$quarks and also the $J/\psi-$meson production at the LHC in the framework of $k_T$-factorization QCD approach. Our study is based on the off-shell partonic QCD subprocesses. The…

High Energy Physics - Phenomenology · Physics 2012-02-21 Nikolay P. Zotov

The calculations of $Z + b{\bar b}$ tagged jet production performed in the four- and five-flavour schemes allow for detailed comparison of the heavy flavour structure of collinear and transverse momentum dependent (TMD) parton distributions…

High Energy Physics - Phenomenology · Physics 2021-06-21 H. Jung , S. Taheri Monfared

We explore the possibility to include small-$x$ dynamics effects in the parton branching (PB) approach to transverse momentum dependent (TMD) parton distribution functions. To this end, we first revisit the PB method at leading order,…

High Energy Physics - Phenomenology · Physics 2019-08-06 Sara Taheri Monfared , Francesco Hautmann , Hannes Jung , Melanie Schmitz

We investigate the inclusive Higgs boson production in proton-proton collisions at the CERN LHC conditions using the $k_T$-factorization approach. Our analysis is based on the dominant off-shell gluon-gluon fusion subprocess (where the…

High Energy Physics - Phenomenology · Physics 2018-03-28 N. A. Abdulov , A. V. Lipatov , M. A. Malyshev

Parton densities are obtained from a solution of the extended DGLAP-type evolution equation that includes both QCD and electroweak contributions. The equations are solved using the Parton-Branching (PB) approach, and the evolution is…

High Energy Physics - Phenomenology · Physics 2025-11-12 K. Moral Figueroa , E. Gallo , H. Jung , S. Taheri Monfared

We compare the numerical predictions for heavy quark production in high energy hadron collisions of the conventional QCD parton model and the $k_T$-factorization approach (semihard theory). The total production cross sections, one-particle…

High Energy Physics - Phenomenology · Physics 2011-01-25 M. G. Ryskin , Yu. M. Shabelski , A. G. Shuvaev

We study the possibility to analyse the data on inclusive prompt photon production at first LHC runs in the framework of the kt-factorization QCD approach. Our consideration is based on the amplitude for the production of a single photon…

High Energy Physics - Phenomenology · Physics 2011-04-20 A. V. Lipatov , M. A. Malyshev , N. P. Zotov

In the preparation period for precision measurements in the newly planned collider experiments, the understanding of the 3D structure of hadron is becoming increasingly urgent. This triggers the activities to include elements of Transverse…

High Energy Physics - Phenomenology · Physics 2025-01-16 Aleksandra Lelek

We propose the study of unpolarized transverse momentum dependent gluon parton distributions as well as the effect of linearly polarized gluons on transverse momentum and rapidity distributions of $J/\psi$ and $\Upsilon$ production within…

High Energy Physics - Phenomenology · Physics 2016-03-23 Asmita Mukherjee , Sangem Rajesh

We investigate open charm meson production in fixed-target LHCb experiment at $\sqrt{s}=86.6$ GeV in $p+^4\!\mathrm{He}$ collisions. Theoretical calculations of charm cross section are done in the framework of the $k_{T}$-factorization…

High Energy Physics - Phenomenology · Physics 2020-07-22 Rafal Maciula

We consider the associated production of $J/\psi$ mesons and muons originating from the $b$-flavored hadron decays and non-prompt double $J/\psi$ production at the LHC using the $k_T$-factorization approach. To describe the inclusive…

High Energy Physics - Phenomenology · Physics 2018-11-14 S. P. Baranov , A. V. Lipatov , M. A. Malyshev