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The photoproduction of quarkonium in coherent hadron-hadron (pp/pA/AA$) interactions for LHC energies is an important tool to investigate the QCD dynamics at high energies. In this paper we estimate the integrated cross section and rapidity…

High Energy Physics - Phenomenology · Physics 2008-11-26 V. P. Goncalves , M. V. T. Machado

In this letter we study the photoproduction of heavy quarks and vector mesons in the coherent proton-nucleus (pA) interactions for RHIC and LHC energies and analyze if these processes can be used to determine the QCD dynamics at high…

High Energy Physics - Phenomenology · Physics 2011-01-25 V. P. Goncalves , M. V. T. Machado

The quarkonium plus photon production in coherent hadron-hadron interactions at the LHC is studied using the non-relativistic QCD factorization formalism. We investigate a set of kinematic distributions and compute the total cross sections…

High Energy Physics - Phenomenology · Physics 2018-04-27 M. M. Machado , G. Gil da Silveira

The forthcoming LHC measurements in proton-nucleus (pA) collisions at forward rapidities can discriminate between the color glass condensate (CGC) and alternative approaches including standard collinear factorization one. We report some of…

High Energy Physics - Phenomenology · Physics 2013-10-17 Amir H. Rezaeian

We calculate the photonuclear production of heavy quarks in ultraperipheral heavy ion collisions. The integrated cross section and the rapidity distribution are computed employing sound high energy QCD formalisms as the collinear and…

High Energy Physics - Phenomenology · Physics 2010-11-30 V. P. Goncalves , M. V. T. Machado

Quarkonium production in high-energy hadronic collisions is a useful tool to investigate fundamental aspects of Quantum Chromodynamics, from the proton and nucleus structure to deconfinement and the properties of the Quark Gluon Plasma…

Nuclear Experiment · Physics 2024-11-26 L. Massacrier

In this work we investigate the coherent photoproduction of psi(1S), psi(2S) and Upsilon (1S) states in the proton-nucleus collisions in the LHC energies. Predictions for the rapidity distributions are presented using the color dipole…

High Energy Physics - Phenomenology · Physics 2014-06-19 G. Sampaio dos Santos , M. V. T. Machado

In this work we analyse the possibility of constraining the QCD dynamics at high energies studying the heavy quark photoproduction at LHC in coherent interactions. The rapidity distribution and total cross section for charm and bottom…

High Energy Physics - Phenomenology · Physics 2014-11-20 V. P. Goncalves , M. V. T. Machado , A. R. Meneses

We investigate the low transverse momentum heavy quarkonium ($J/\psi$, $\Upsilon$) productions in the forward rapidity region of $pp$ and $pA$ collisions at the LHC as an important probe to the transverse momentum tomography of the gluons…

High Energy Physics - Phenomenology · Physics 2015-12-23 Kazuhiro Watanabe , Bo-Wen Xiao

We compute the differential cross section for direct quarkonium production in high-energy electron-nucleus collisions at small $x$. Our computation is performed within the nonrelativistic QCD factorization formalism that separates the…

High Energy Physics - Phenomenology · Physics 2024-09-09 Vincent Cheung , Zhong-Bo Kang , Farid Salazar , Ramona Vogt

We study the production of heavy quarkonium states in high energy proton-nucleus collisions. Following earlier work of Blaizot, Fujii, Gelis, and Venugopalan, we systematically include both small $x$ evolution and multiple scattering…

High Energy Physics - Phenomenology · Physics 2014-01-21 Zhong-Bo Kang , Yan-Qing Ma , Raju Venugopalan

Coherent photoproduction of heavy quarkonia on nuclear targets is studied within the QCD color dipole formalism including several main phenomena: i) The correlation between impact parameter of a collision $\vec b$ and dipole orientation…

High Energy Physics - Phenomenology · Physics 2022-12-08 J. Nemchik , B. Z. Kopeliovich

We investigate inclusive prompt photon and semi-inclusive prompt photon-hadron production in high energy proton-nucleus collisions using the Color Glass Condensate (CGC) formalism which incorporates non-linear dynamics of gluon saturation…

High Energy Physics - Phenomenology · Physics 2012-08-17 Jamal Jalilian-Marian , Amir H. Rezaeian

Quarkonium production in high-energy proton (deuteron)-nucleus collisions is investigated in the color glass condensate framework. We employ the color evaporation model assuming that the quark pair produced from dense small-x gluons in the…

High Energy Physics - Phenomenology · Physics 2015-06-15 Hirotsugu Fujii , Kazuhiro Watanabe

Based on the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD), we calculate the production cross section for the charmonium and the bottomonium produced by the hard photoproduction processes and fragmentation…

High Energy Physics - Phenomenology · Physics 2017-06-13 Gong-Ming Yu , Yan-Bing Cai , Yun-De Li , Jian-Song Wang

In this paper we study the inelastic quarkonium photoproduction in coherent $pp/pPb/PbPb$ interactions. Considering the ultra relativistic hadrons as a source of photons, we estimate the total $ h_1 + h_2 \rightarrow h \otimes V + X$ ($V =…

High Energy Physics - Phenomenology · Physics 2015-06-17 V. P. Goncalves , M. M. Machado

We compute the cross section for photons emitted from sea quarks in proton-nucleus collisions at collider energies. The computation is performed within the dilute-dense kinematics of the Color Glass Condensate (CGC) effective field theory.…

High Energy Physics - Phenomenology · Physics 2017-03-08 Sanjin Benic , Kenji Fukushima , Oscar Garcia-Montero , Raju Venugopalan

The production of isolated photons in high multiplicity events is investigated considering the Color Glass Condensate (CGC) formalism. The associated cross-section for proton - proton collisions is estimated considering three distinct…

High Energy Physics - Phenomenology · Physics 2024-03-13 Yuri N. Lima , André V. Giannini , Victor P. Goncalves

I present a short review of recent studies of quarkonium production in proton-proton and proton-nucleus collisions at collider energies in Small-$x$ formalism.

High Energy Physics - Phenomenology · Physics 2017-04-28 Kazuhiro Watanabe

We report on the current status of knowledge on inclusive quarkonium production in high-energy photon-photon collisions. As a perspective for the LHC, we compute various production cross sections via direct photon-photon fusion in…

High Energy Physics - Phenomenology · Physics 2008-12-18 M. Klasen , J. P. Lansberg
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