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We investigate the theoretical uncertainty on the predictions for the photoproduction of $\rho$ and $J/\Psi$ states in nucleus-nucleus collisions at Run 2 LHC energies using the Color Dipole formalism. The results for rapidity distributions…

High Energy Physics - Phenomenology · Physics 2018-06-13 V. P. Goncalves , M. V. T. Machado , B. D. Moreira , F. S. Navarra , G. Sampaio dos Santos

The exclusive $J/\Psi$ and $\Upsilon$ photoproduction in fixed - target collisions at the LHC and $ep(A)$ collisions at the Electron ion collider in China (EicC) is investigated considering different models for the treatment of the vector…

High Energy Physics - Phenomenology · Physics 2021-09-13 Ya-Ping Xie , Victor P. Goncalves

In this letter we update our predictions for the photoproduction of vector mesons in coherent $pp$ and $AA$ collisions at RHIC and LHC energies using the color dipole approach and the Color Glass Condensate (CGC) formalism. In particular,…

High Energy Physics - Phenomenology · Physics 2011-08-08 V. P. Goncalves , M. V. T. Machado

We study the production of spin-one mesons in high-energy heavy-ion collisions with peripheral kinematics in the framework of QED. The cross sections of the production of a single vector meson and of two different ones are presented. The…

High Energy Physics - Phenomenology · Physics 2015-06-05 A. I. Ahmadov , B. A. Kniehl , E. A. Kuraev , E. S. Scherbakova

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

In this letter we estimate the contribution of the double diffractive processes for the diphoton production in $pp$ collisions at the Large Hadron Collider (LHC). The acceptance of the central and forward LHC detectors is taken into account…

High Energy Physics - Phenomenology · Physics 2020-10-28 V. P. Goncalves , D. E. Martins , M. S. Rangel

We present predictions for the J/psi and rho meson production in the heavy ion ultraperipheral collisions (UPC) for the current energy 2.76 TeV at the LHC. Both total cross sections and cross sections with the neutron emission from one or…

High Energy Physics - Phenomenology · Physics 2015-05-30 V. Rebyakova , M. Strikman , M. Zhalov

We propose a holographic model for dilepton production in proton-proton collisions based on the exchange of vector mesons. The holographic hard wall model is used to describe the dynamics and interactions of vector mesons and baryons. We…

High Energy Physics - Theory · Physics 2011-07-06 C. A. Ballon Bayona , Henrique Boschi-Filho , Nelson R. F. Braga

Significant enhancements of J/$\psi$ production have been observed by various experiments at RHIC and LHC for very low transverse momenta in peripheral heavy-ion collisions, which has ignited a surge of investigations into photon-induced…

High Energy Physics - Phenomenology · Physics 2024-01-17 Kaifeng Shen , Xin Wu , Zebo Tang , Wangmei Zha

The production of $\omega$-mesons in proton-proton collisions for proton incident energies up to 2.2 GeV is investigated within a meson-exchange model of hadronic interactions. We find a large cancellation between the dominant…

Nuclear Theory · Physics 2008-11-26 K. Nakayama , A. Szczurek , C. Hanhart , J. Haidenbauer , J. Speth

The dominant mechanism for the central exclusive production of vector meson in $p p$ and $p \bar p$ collisions is the $\gamma$ $I P$ fusion. As a building block for the pp reaction, the amplitude for photoproduction $ \gamma p \to V p $ is…

High Energy Physics - Phenomenology · Physics 2015-05-30 Anna Cisek , Wolfgang Schäfer , Antoni Szczurek

The strong electromagnetic fields of heavy nuclei can produce a wide variety of two-photon and photonuclear reactions at relativistic ion colliders. We present recent results from the STAR collaboration on these `ultra-peripheral'…

Nuclear Experiment · Physics 2019-08-14 Spencer Klein

Cross sections for the concurrent production of pairs of quarkonia (J/psi, Upsilon) and/or gauge bosons (W, Z) from double-parton scatterings (DPS) in high-energy proton-nucleus and nucleus-nucleus collisions at the LHC are calculated. The…

High Energy Physics - Phenomenology · Physics 2015-06-22 David d'Enterria , Alexander M. Snigirev

Exclusive vector meson production reactions such as $Au + Au \to Au + Au + V$, where $V=\rho, \omega, \phi$ or $J/\psi$ can proceed through photon-Pomeron and photon-meson interactions. Photons from the electromagnetic field of one nucleus…

High Energy Physics - Phenomenology · Physics 2011-07-19 Spencer Klein , Joakim Nystrand

We study, for the first time, differential distributions for two $\rho^0$ meson production in exclusive ultraperipheral, ultrarelativistic heavy ion collisions via a double-scattering mechanism. The calculations are done in the impact…

High Energy Physics - Phenomenology · Physics 2015-10-14 Antoni Szczurek , Mariola Klusek-Gawenda

The strong electromagnetic fields surrounding the Pb-ions accelerated at the CERN Large Hadron Collider (LHC) allow two-photon and photonuclear interactions to be studied in a so far unexplored kinematic regime. Exclusive photoproduction of…

Nuclear Experiment · Physics 2013-03-11 Joakim Nystrand

The production of charged hadrons and K_s mesons in the collisions of quasi-real photons has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies of 161 and 172 GeV. The differential…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al

High-p_T pion and kaon production is studied in relativistic proton-proton, proton-nucleus, and nucleus-nucleus collisions in a wide energy range. Cross sections are calculated based on perturbative QCD, augmented by a phenomenological…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. Zhang , G. Fai , G. Papp , G. G. Barnafoldi , P. Levai

The meson production cross sections are estimated considering photon-photon interactions in hadron - hadron collisions at CERN LHC energies. We consider a large number of mesons with photon-photon partial decay width well constrained by the…

High Energy Physics - Phenomenology · Physics 2014-05-27 V. P. Goncalves , D. T. da Silva , W. K. Sauter

We calculate the production of large-pTcharmonium and narrow resonance state (exotic charmonium) in proton-proton, proton-nucleus, and nucleus-nucleus collisions with the semi-coherent two-photon interactions at Relativistic Heavy Ion…

High Energy Physics - Phenomenology · Physics 2017-03-21 Gong-Ming Yu , Yue-Chao Yu , Yun-De Li , Jian-Song Wang
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