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Hadron inclusive spectra in pp collisions are analyzed within the modified quark-gluon string model including both the longitudinal and transverse motion of quarks in the proton in the wide region of initial energies. The self-consistent…

High Energy Physics - Phenomenology · Physics 2015-05-27 V. A. Bednyakov , A. A. Grinyuk , G. I. Lykasov , M. Poghosyan

We analyze the inclusive spectra of hadrons produced in $pp$ collisions at high energies in the mid-rapidity region within the soft QCD and perturbative QCD assuming the possible creation of the soft gluons at low intrinsic transverse…

High Energy Physics - Phenomenology · Physics 2015-05-30 G. I. Lykasov , V. A. Bednyakov , A. A. Grinyuk , M. Poghosyan , A. G. Dolbilov

A new approach to the analysis of soft and semihard hadron processes is suggested. In the frame of the Quark-Gluon String Model the interaction of valence quarks and diquarks and sea quarks (antiquarks) of colliding hadrons is taken into…

High Energy Physics - Phenomenology · Physics 2016-09-01 G. I. Lykasov , M. N. Sergeenko

We found the parameterization of the unintegrated gluon distribution from the best description of the LHC data on the inclusive spectra of hadrons produced in $pp$ collisions at the mid-rapidity region and small transverse momenta. It is…

High Energy Physics - Phenomenology · Physics 2012-03-06 A. A. Grinyuk , H. Jung , G. I. Lykasov , A. V. Lipatov , N. P. Zotov

The presence of geometric scaling within the $p_T$ spectra of produced hadrons at high energy $pp$ collisions using small-$x$ $k_T$-factorization is investigated. It is proposed a phenomenological parameterization for the unintegrated gluon…

High Energy Physics - Phenomenology · Physics 2020-08-24 L. S. Moriggi , G. M. Peccini , M. V. T. Machado

We report the results of calculations of inclusive soft hadron production in proton-lead collisions at the LHC in the framework of modified quark-gluon string model (QGSM) extended to $pA$ interactions. Our consideration involves the…

High Energy Physics - Phenomenology · Physics 2026-03-20 A. V. Lipatov , G. I. Lykasov , M. A. Malyshev

This study presents new insights into gluon transverse momentum distributions through nonextensive statistical mechanics, addressing their implications for QCD phenomenology. The saturation physics and scaling laws present in high energy…

High Energy Physics - Phenomenology · Physics 2025-01-10 Lucas Soster Moriggi , Magno Valerio Trindade Machado

We calculate the unintegrated gluon distribution at low intrinsic transverse momenta and its parameters are found from the best description of the SPS and LHC data on the $pp$ collision in the soft kinematical region. It allows us to study…

High Energy Physics - Phenomenology · Physics 2015-06-12 G. I. Lykasov , A. A. Grinyuk , V. A. Bednyakov

We compute the spectrum of gluons emitted by a highly energetic quark inside a flowing QCD medium, focusing on the soft gluon limit at first order in the opacity expansion. Specifically, we derive the leading energy-suppressed corrections…

High Energy Physics - Phenomenology · Physics 2024-06-24 Matvey V. Kuzmin , Xoán Mayo López

In-medium effects for distributions of quarks and gluons in central A+A collisions are considered. We suggest a duality principle, which means similarity of thermal spectra of hadrons produced in heavy-ion collisions and inclusive spectra…

Nuclear Theory · Physics 2009-05-18 G. I. Lykasov , A. N. Sissakian , A. S. Sorin , O. V. Teryaev

We study the unintegrated, or transverse momentum dependent (TMD) gluon distribution obtained from the best description of the LHC data on the inclusive spectra of hadrons produced in the mid-rapidity region and low transverse momenta at…

High Energy Physics - Phenomenology · Physics 2014-01-15 A. V. Lipatov , G. I. Lykasov , N. P. Zotov

We find out the connection between the unintegrated gluon distribution at low intrinsic transverse momenta and the inclusive spectrum of the hadrons produced in pp collision at LHC energies in the mid-rapidity region and low hadron…

High Energy Physics - Phenomenology · Physics 2013-04-24 A. A. Grinyuk , A. V. Lipatov , G. I. Lykasov , N. P. Zotov

We argue that the study of heavy quarkonia, in particular that of $\Upsilon$, produced back-to-back with an isolated photon in $pp$ collisions at the LHC is the best --and currently unique-- way to access the distribution of both the…

High Energy Physics - Phenomenology · Physics 2014-06-11 Wilco J. den Dunnen , Jean-Philippe Lansberg , Cristian Pisano , Marc Schlegel

We discuss three different cases of hard inclusive spectra in proton-proton collisions: high $p_T$ single hadron production at $\sqrt{s}\approx$ 20 GeV and at $\sqrt{s}$ = 62.4 GeV, and direct photon production at $\sqrt{s}$ = 200 GeV; with…

Nuclear Experiment · Physics 2008-11-26 David d'Enterria

In this paper we briefly review some examples of inclusive energy-momentum distributions and correlations in QCD intra-jet cascades. Emphasis is given to the role of gluon coherence effects in final states hadron spectra. These observables…

High Energy Physics - Phenomenology · Physics 2011-06-02 Redamy Perez Ramos

In-medium effects on transverse-mass distributions of quarks and gluons are considered assuming a possible local equilibrium for colorless quark objects (mesons and baryons) created in central A-A collisions. It is shown that the average…

Nuclear Theory · Physics 2017-08-23 G. I. Lykasov , A. N. Sissakian , A. S. Sorin , V. D. Toneev

Transverse momentum spectra of charmed and beauty mesons produced in proton-proton and proton-antiproton collisions at high energies are analyzed within the modified quark-gluon string model (QGSM) including the internal motion of quarks in…

High Energy Physics - Phenomenology · Physics 2014-11-18 G. I. Lykasov , Z. M. Karpova , M. N. Sergeenko , V. A. Bednyakov

The dynamical entropy of dense gluonic states in proton-proton collisions at high energies is studied by using phenomenological models for the unintegrated gluon distribution. The corresponding transverse momentum probability distributions…

High Energy Physics - Phenomenology · Physics 2022-05-25 G. S. Ramos , M. V. T. Machado

In-medium effects of transverse-mass distributions of quarks and gluons are considered assuming a possible local equilibrium for colorless quark objects like mesons and baryons created in central A+A collisions. It is shown that the average…

Nuclear Theory · Physics 2008-11-26 G. I. Lykasov , A. N. Sissakian , A. S. Sorin , V. D. Toneev

We argue that the distribution of hadrons near the longitudinal light-cone in central high-energy pA collisions is computable in weak coupling QCD. This is because the density of gluons per unit transverse area in the dense target at…

High Energy Physics - Phenomenology · Physics 2009-11-07 Adrian Dumitru , Lars Gerland , Mark Strikman
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