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A study of double charmed meson production in proton-proton and proton-nucleus collisions at the LHC energies is performed. Based on the color dipole formalism developed in the transverse momentum representation and the double parton…

高能物理 - 唯象学 · 物理学 2023-09-15 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

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…

高能物理 - 唯象学 · 物理学 2013-10-17 Amir H. Rezaeian

We consider semi-inclusive diphoton+jet and inclusive diphoton production in high-energy proton-nucleus collisions, treating the target nucleus as a Color-Glass-Condensate and the projectile proton in the parton model. We obtain the prompt…

高能物理 - 唯象学 · 物理学 2014-07-23 Alex Kovner , Amir H. Rezaeian

In this work we estimate the heavy quark production in proton-proton and proton-nucleus collisions at LHC energies using the color dipole formalism and the solution of the running coupling Balitsky-Kovchegov equation. Nuclear effects are…

高能物理 - 唯象学 · 物理学 2015-05-30 E. R. Cazaroto , V. P. Goncalves , F. S. Navarra

We investigate the theoretical uncertainty on the predictions for the photoproduction of J/psi and Upsilon states in the proton-nucleus and nucleus-nucleus collisions at the LHC within the color dipole formalism. Predictions for the…

高能物理 - 唯象学 · 物理学 2015-09-30 G. Sampaio dos Santos , M. V. T. Machado

In this paper we present a detailed comparison of the dijet production by photon -- photon, photon -- pomeron and pomeron -- pomeron interactions in $pp$, $pA$ and ${\rm AA}$ collisions at the LHC energy. The transverse momentum, pseudo --…

高能物理 - 唯象学 · 物理学 2017-10-18 E. Basso , V. P. Goncalves , A. K. Kohara , M. S. Rangel

In this contribution we study the photoproduction of quarkonium in coherent proton-proton and nucleus-nucleus interactions at the LHC. The integrated cross sections and rapidity distributions are estimated using the Color Glass Condensate…

高能物理 - 唯象学 · 物理学 2007-06-20 V. P. Goncalves , M. V. T. Machado

We investigate the photoproduction of $\rho$ mesons in ultraperipheral heavy ion collisions at RHIC and LHC energies in the dipole approach and within two phenomenological models based on the the Color Glass Condensate (CGC) formalism. We…

高能物理 - 唯象学 · 物理学 2009-11-10 V. P. Goncalves , M. V. T. Machado

We study single inclusive hadron production in proton-proton and proton-nucleus collisions in the CGC framework. The parameters in the calculation are obtained by fitting electron-proton deep inelastic scattering data. The obtained…

高能物理 - 唯象学 · 物理学 2014-06-13 T. Lappi , H. Mäntysaari

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…

高能物理 - 唯象学 · 物理学 2012-08-17 Jamal Jalilian-Marian , Amir H. Rezaeian

We apply the target rest frame formalism to photon + heavy quark production cross section in hadronic collisions at high energies. We investigate the dependence of the production cross section on the photon and quark rapidities and…

高能物理 - 唯象学 · 物理学 2010-12-23 M. A. Betemps , M. V. T. Machado

Within the resolved Pomeron model of hard diffractive scattering, we compute prompt photon production in double-Pomeron-exchange events in proton-proton collisions. Using specific kinematical constraints chosen according to the acceptances…

高能物理 - 唯象学 · 物理学 2016-05-04 A. K. Kohara , C. Marquet

We have investigated the single and double diffractive production of dileptons and photons in ultra-peripheral collisions at the Large Hadron Collider (LHC). Utilizing advanced theoretical models that integrate quantum electrodynamics (QED)…

高能物理 - 唯象学 · 物理学 2024-05-28 Gongming Yu , Rabia Hameed , Liyuan Hu , Qiang Hu

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…

高能物理 - 唯象学 · 物理学 2024-03-13 Yuri N. Lima , André V. Giannini , Victor P. Goncalves

In this work we investigate the exclusive photoproduction of J/psi and the radially excited psi(2S) state off nucleon in proton-proton collisions. The theoretical framework considered in the analysis is the light-cone dipole formalism and…

高能物理 - 唯象学 · 物理学 2014-06-19 M. B. Gay Ducati , M. T. Griep , M. V. T. Machado

We calculate the inclusive and diffractive photoproduction of heavy quarks in proton-proton collisions at Tevatron and LHC energies, where the photon reaches energies larger than those ones accessible at DESY-HERA. The integrated cross…

高能物理 - 唯象学 · 物理学 2009-09-02 V. P. Goncalves , M. V. T. Machado , A. R. Meneses

The exclusive $Z^0$ photoproduction at high energies in $\gamma p (A)$, $p p$ and $AA$ collisions is investigate within the color dipole formalism. We generalize the description of the deeply virtual compton scattering (DVCS) process, which…

高能物理 - 唯象学 · 物理学 2014-11-18 V. P. Goncalves , M. V. T. Machado

We discuss photon-photon fusion mechanisms of dilepton production in proton-proton collisions with rapidity gap in the main detector and one forward proton in the forward proton detectors. This is relevant for the LHC measurements by…

高能物理 - 唯象学 · 物理学 2021-07-29 Antoni Szczurek , Barbara Linek , Marta Luszczak

In this letter we update our predictions for exclusive $J/\Psi$ and $\Upsilon$ photoproduction in proton-proton and nucleus - nucleus collisions at the Run 2 LHC energies obtained with the color dipole formalism and considering the impact…

高能物理 - 唯象学 · 物理学 2017-03-22 V. P. Goncalves , B. D. Moreira , F. S. Navarra

The exclusive photoproduction of the heavy vector mesons $\psi$'s and $Y$'s is investigated in peripheral lead-lead collisions for the energies available at the LHC, $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV. In order to evaluate the…

高能物理 - 唯象学 · 物理学 2018-06-27 M. B. Gay Ducati , S. Martins