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Related papers: Prompt photon production in high-energy $pA$ colli…

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An analysis of prompt photon production in high energy nuclear collisions at the LHC energy regime is performed within the parton saturation picture taking into account the updated phenomenological color dipole models. The results are…

High Energy Physics - Phenomenology · Physics 2020-12-14 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

A study on the prompt photon production within the QCD color dipole picture with emphasis in $pp$ and $pA$ collisions at the LHC energy regimes is performed. We present predictions for the differential cross section as a function of photon…

High Energy Physics - Phenomenology · Physics 2020-09-29 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

In this paper we investigate the hadron and photon production at forward rapidities in $pp$ and $pA$ collisions considering two phenomenological models based on the Color Glass Condensate formalism. The predictions of these models for the…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. A. Betemps , V. P. Goncalves

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 investigate hadrons and direct photon production in pp and pA collisions at the energies of RHIC and LHC within the color-dipole approach employing various saturation models. We show that greatest sensitivity to saturation effects is…

High Energy Physics - Phenomenology · Physics 2010-06-23 Amir H. Rezaeian , Andreas Schaefer

We investigate the rapidity and transverse momentum distributions of the prompt photon production at the CERN LHC energies considering the current perturbative QCD approaches for this scattering process. Namely, we compare the predictions…

High Energy Physics - Phenomenology · Physics 2009-07-22 M. V. T. Machado , C. Brenner Mariotto

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

We investigate direct photon production in pp collisions at the energies of RHIC, CDF and LHC, at different rapidities employing various color-dipole models. The cross section peaks at forward rapidities due to the abelian dynamics of…

High Energy Physics - Phenomenology · Physics 2009-04-22 B. Z. Kopeliovich , E. Levin , A. H. Rezaeian , Ivan Schmidt

We calculate the photoproduction of heavy quarks in proton-proton collisions at RHIC, Tevatron and LHC energies. The integrated cross section and the rapidity distributions for open charm and bottom production are computed employing sound…

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

We consider production of prompt photons in high energy gold-gold and deuteron-gold collisions in the forward rapidity region of RHIC ($y \sim 3.8$). In this kinematics, the projectile partons typically have large $x_{bj}$ while the target…

High Energy Physics - Phenomenology · Physics 2010-11-30 Jamal Jalilian-Marian

A phenomenological study of the isolated photon production in high energy $pp$ and $pA$ collisions at RHIC and LHC energies is performed. Using the color dipole approach we investigate the production cross section differential in the…

High Energy Physics - Phenomenology · Physics 2020-05-27 Victor P. Goncalves , Yuri Lima , Roman Pasechnik , Michal Šumbera

Prompt photons produced in a hard reaction are not accompanied with any final state interaction, either energy loss or absorption. Therefore, besides the Cronin enhancement at medium transverse momenta pT and small isotopic corrections at…

High Energy Physics - Phenomenology · Physics 2012-04-20 J. Cepila , J. Nemchik

We investigate semi-inclusive photon-hadron production in the color glass condensate (CGC) framework at RHIC and the LHC energies in proton-proton (pp) and proton-nucleus (pA) collisions. We calculate the coincidence probability for…

High Energy Physics - Phenomenology · Physics 2012-11-07 Amir H. Rezaeian

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

Recent results on prompt photon production in photoproduction, deeply inelastic scattering and hadronic collisions are reviewed and the importance of photons for LHC experiments is briefly discussed.

High Energy Physics - Phenomenology · Physics 2008-12-18 G. Heinrich

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

Measurements of direct photon and neutral pion production in heavy-ion collisions provide a comprehensive set of observables characterizing properties of the hot QCD medium. Direct photons provide means to test the initial stage of an AA…

Nuclear Experiment · Physics 2019-08-13 Dmitri Peressounko

In this paper we investigate the $\eta_c$ production by photon - photon and photon - hadron interactions in $pp$ and $pA$ collisions at the LHC energies. The inclusive and diffractive contributions for the $\eta_c$ photoproduction are…

High Energy Physics - Phenomenology · Physics 2018-05-16 V. P. Goncalves , B. D. Moreira

In this work we study the diffractive photoproduction of $J/\Psi$ in proton-proton, proton - nucleus and nucleus - nucleus collisions at LHC energies using the color dipole formalism and different models for the forward dipole - target…

High Energy Physics - Phenomenology · Physics 2014-07-18 V. P. Goncalves , B. D. Moreira , F. S. Navarra

We consider spin asymmetries for prompt photon production in collisions of longitudinally polarized hadrons. This reaction will be a key tool at the BNL-RHIC pp collider for determining the gluon spin density in a polarized proton. We study…

High Energy Physics - Phenomenology · Physics 2007-05-23 Werner Vogelsang
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