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In this paper we estimate the double parton scattering (DPS) contribution for the heavy quark production in $pA$ collisions at the LHC. The cross sections for the charm and bottom production are estimated using the dipole approach and…

High Energy Physics - Phenomenology · Physics 2018-06-29 E. R. Cazaroto , V. P. Goncalves , F. S. Navarra

In this letter we study the diffractive photoproduction of heavy quarks in hadronic (pp/pA/AA) interactions for Tevatron and LHC energies. The integrated cross section and rapidity distribution for the process h_1 h_2 --> h_1 h_2 QQBAR (h_i…

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

I consider production of heavy quarks in pA and AA collisions in the framework of the Color Glass Condensate. I discuss the heavy quark production in pA collisions in a classical approximation which takes into account all multiple…

High Energy Physics - Phenomenology · Physics 2010-11-30 Kirill Tuchin

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 discuss a program for systematic studies of heavy quark production in $pp$, $pA$ and $AA$ interactions. The $Q \bar Q$ production cross sections themselves cannot be accurately predicted to better than 50% at RHIC. For studies of…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Vogt

In this paper we investigate the role of the high density effects in the heavy quark production cross section in $pA$ processes at RHIC and LHC. We use, as initial condition, a gluon distribution consistent with fixed target nuclear data…

High Energy Physics - Phenomenology · Physics 2011-01-25 A. L. Ayala Filho , V. P. Goncalves

Experimental results obtained with the HERA collider and recent progress in their theoretical interpretation are reviewed. After a short introduction to HERA physics, deep inelastic scattering and photoproduction are discussed as (virtual)…

Astrophysics · Physics 2009-09-25 Ralph Engel

The heavy quark production in ultraperipheral heavy ion collisions is investigated, in particular we focus on the results from the coherent interactions given by the two-photon process. One addresses the heavy quark total cross sections at…

High Energy Physics - Phenomenology · Physics 2009-01-07 V. P. Goncalves , M. V. T. Machado

We report on our recent investigations in photonuclear production of heavy quarks and vector meson in ultraperipheral heavy ion collisions. In particular, our theoretical predictions are compared with the recent experimental measurements on…

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

We study the production of heavy quarks, charm at BNL-RHIC ($\sqrt{s}$=200 GeV/nucleon) and CERN-LHC ($\sqrt{s}$=5.5 TeV/nucleon) and bottom at CERN-LHC from heavy ions colliding at relativistic energies. We consider initial fusion of…

Nuclear Theory · Physics 2014-11-21 Mohammed Younus , Dinesh K. Srivastava

We present predictions for the diffractive production of heavy quarks in deep-inelastic scattering and hadron-hadron collisions and for double diffractive dijet production in hadron-hadron collisions. With the assumption of hard scattering…

High Energy Physics - Phenomenology · Physics 2007-05-23 Lyndon Alvero , John C. Collins , J. J. Whitmore

Using the QCD color dipole picture to study exclusive vector meson and inclusive jet/open meson photoproduction, we calculate the ratio of elastic meson production to inclusive hadron production cross sections for ultraperipheral heavy ion…

High Energy Physics - Phenomenology · Physics 2026-05-15 Joao Vitor C. Lovato , Edgar Huayra , Magno V. T. Machado

Heavy quark productions in high energy polarized scatterings are reviewed from a personal point of view. After mentioning why heavy quark physics is so interesting, I concentrate on two rather specific subjects: (1) polarized…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Morii

Heavy quark production is studied at the high energy linear e^+e^- collider (LC) TESLA both in its nominal and Photon Collider (PC) mode. Leading order cross-sections are calculated for the production of heavy quarks, e^+e^- -> e^+e^-…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Jankowski , M. Krawczyk , A. De Roeck

The single diffractive cross section for heavy quarks production is calculated in next-no-leading order (NLO) in nucleus-nucleus collisions. Such processes are expected to occur at the LHC. We start using the hard diffractive factorization…

High Energy Physics - Phenomenology · Physics 2010-05-28 M. B. Gay Ducati , M. M. Machado , M. V. T. Machado

The recent theory developments and latest experimental results on heavy-flavour production in Deep Inelastic Scattering and at hadron colliders are summarized. Models of heavy quarkonia production, non-perturbative corrections to…

High Energy Physics - Phenomenology · Physics 2010-11-19 Katerina Lipka , Gennaro Corcella

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…

High Energy Physics - Phenomenology · Physics 2010-12-23 M. A. Betemps , M. V. T. Machado

The theoretical description of heavy quarkonium production at high-energy p-pbar and e-p colliders is reviewed. Predictions based on non-relativistic QCD factorisation are confronted with recent charmonium and bottomonium data from the…

High Energy Physics - Phenomenology · Physics 2009-04-13 Michael Krämer

The cross sections of heavy quark production in $pp$ collision and for their photo- and electroproduction are calculated in the framework of QCD. The virtual nature of the interacting gluons as well as their transverse motion and different…

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

I discuss mechanisms of heavy quark production in (real) photon-nucleon and (real) photon - (real) photon collisions. In particular, I focuse on application of the Saturation Model. In addition to the main dipole-nucleon or dipole-dipole…

High Energy Physics - Phenomenology · Physics 2011-01-25 A. Szczurek