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A simple model for the photoproduction of kaons off protons with a lambda hyperon in the final state is presented. In a quark model, the interaction is modelled by the pair-creation of the (anti-) strange quarks in the final state which…

High Energy Physics - Phenomenology · Physics 2011-07-19 V. Keiner

In this work we consider the QCD parton saturation models to describe soft interactions at the high energy limit. The total and elastic cross sections as well as the elastic slope parameter are obtained for proton-proton and pion-proton…

High Energy Physics - Phenomenology · Physics 2020-05-06 G. M. Peccini , F. Kopp , M. V. T. Machado , D. A. Fagundes

We perform a detailed comparison of long range rapidity correlations in the Color Glass Condensate framework to high multiplicity di-hadron data in proton-proton and proton-lead collisions from the CMS, ALICE and ATLAS experiments at the…

High Energy Physics - Phenomenology · Physics 2013-06-05 Kevin Dusling , Raju Venugopalan

We make predictions for the cross sections of diffractive dijet photoproduction in $pp$, $pA$ and $AA$ ultraperipheral collisions (UPCs) at the LHC during Runs 1 and 2 using next-to-leading perturbative QCD. We find that the resulting cross…

High Energy Physics - Phenomenology · Physics 2016-05-25 V. Guzey , M. Klasen

This contribution discusses the phenomenon of parton saturation, the color glass picture of hadronic wavefuntions, and their relevance in the early stages of nucleus-nucleus collisions. Evidence for the color glass condensate in the…

High Energy Physics - Phenomenology · Physics 2010-11-30 Jean-Paul Blaizot , François Gelis

We consider the production of heavy-quark pairs in the collisions of polarized and unpolarized on-shell photons and present, in analytic form, the fully integrated total cross sections for total photon spins $J_z=0, \pm 2$ at…

High Energy Physics - Phenomenology · Physics 2009-07-09 B. A. Kniehl , A. V. Kotikov , Z. V. Merebashvili , O. L. Veretin

The physics of the initial conditions of heavy ion collisions is dominated by the nonlinear gluonic interactions of QCD. These lead to the concepts of parton saturation and the Color Glass Condensate (CGC). We discuss recent progress in…

High Energy Physics - Phenomenology · Physics 2011-05-27 T. Lappi

Heavy ion collisions are rich and complex systems that involve different aspects of QCD and electromagnetic phenomena. From head-on collisions to the case in which the nuclei miss each other, many of QCD and photo-induced probes are being…

Nuclear Experiment · Physics 2023-06-27 Luis F. Alcerro

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…

High Energy Physics - Phenomenology · Physics 2015-05-30 E. R. Cazaroto , V. P. Goncalves , F. S. Navarra

We perform a global Bayesian analysis of diffractive $\mathrm{J}/\psi$ production in $\gamma+p$ and $\gamma+\mathrm{Pb}$ collisions within a Color Glass Condensate based framework. Using data from HERA and the LHC, we find that a…

High Energy Physics - Phenomenology · Physics 2025-09-01 Heikki Mäntysaari , Hendrik Roch , Farid Salazar , Björn Schenke , Chun Shen , Wenbin Zhao

We study coherent diffractive photon and vector meson production in electron-proton and electron-nucleus collisions within the Color Glass Condensate effective field theory. We show that electron-photon and electron-vector meson azimuthal…

High Energy Physics - Phenomenology · Physics 2024-05-07 Heikki Mäntysaari , Kaushik Roy , Farid Salazar , Björn Schenke

Heavy quark production in high-energy proton-nucleus (pA) collisions is described in the framework of the Color Glass Condensate. kT factorization is broken even at leading order albeit a more general factorization in pA holds at this order…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. Fujii , F. Gelis , R. Venugopalan

The dilepton production is investigated in proton-nucleus collisions in the forward region using the Color Glass Condensate approach. The transverse momentum distribution ($p_T$), more precisely the low $p_T$ region, where the saturation…

High Energy Physics - Phenomenology · Physics 2010-11-30 M. A. Betemps , M. B. Gay Ducati

We investigate the transverse polarization of hyperons produced by the photon induced reactions using the quark recombination model. This model reproduces polarizations of hadrons produced by the hadron-hadron collisions and accounts for…

High Energy Physics - Phenomenology · Physics 2017-08-23 Noriaki Nakajima , Katsuhiko Suzuki , Hiroshi Toki , Ken-Ichi Kubo

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

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

We calculate the contribution from the $q \bar q g$ state production to the diffractive cross sections in deep inelastic scattering at high energy. The obtained cross section is finite by itself, and consists a part of the full…

High Energy Physics - Phenomenology · Physics 2023-07-13 G. Beuf , H. Hänninen , T. Lappi , H. Mäntysaari , Y. Mulian

Diffractive vector meson photoproduction accompanied by proton dissociation is studied for large momentum transfer. The process is described by the non-forward BFKL equation which we use to compare to data collected at the HERA collider.

High Energy Physics - Phenomenology · Physics 2009-11-10 G. G. Poludniowski , R. Enberg , J. R. Forshaw , L. Motyka

We study anomalous high-$p_T$ baryon production in $AA$-collisions due to formation of the two parton collinear $gq$ system in the anti-sextet color state for quark jets and $gg$ system in the decuplet/anti-decuplet color states for gluon…

High Energy Physics - Phenomenology · Physics 2015-05-30 P. Aurenche , B. G. Zakharov

A brief review of the phenomenological studies in the field of heavy ion collisions based on the Color Glass Condensate theory and, in particular, of those relying in the use of the BK equation including running coupling effects is…

High Energy Physics - Phenomenology · Physics 2011-07-29 Javier L Albacete
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