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We study exclusive dijet production in coherent diffractive processes in deep inelastic scattering and real (and virtual) photon-hadron ($\gamma^{(*)}$-h) collisions in the Color Glass Condensate formalism at leading order. We show that the…

High Energy Physics - Phenomenology · Physics 2016-05-24 Tolga Altinoluk , Néstor Armesto , Guillaume Beuf , Amir H. Rezaeian

A rigorous light-front formalism for electron deep inelastic scattering on unpolarized nuclei, in Bjorken limit, is reported. It preserves Poincar\'e covariance, macroscopic locality, both number of particles and momentum sum rules. The…

Nuclear Theory · Physics 2023-03-22 Emanuele Pace , Matteo Rinaldi , Giovanni Salme` , Sergio Scopetta

We examine the possibility to utilize in-medium charmonium formation in heavy ion interactions at collider energy as a probe of the properties of the medium. This is possible because the formation process involves recombination of charm…

High Energy Physics - Phenomenology · Physics 2009-11-11 R. L. Thews

We calculate the cross-sections of diffractive single hadron photo- or electroproduction with large $p_T$, on a nucleon or a nucleus in the shockwave formalism. We use the hybrid formalism mixing collinear factorization with high energy…

High Energy Physics - Phenomenology · Physics 2024-03-05 Michael Fucilla , Andrey Grabovsky , Emilie Li , Lech Szymanowski , Samuel Wallon

We present a systematic comparison of charmonium light-front wave functions obtained through two complementary non-perturbative approaches: Basis Light-Front Quantization (BLFQ) and Dyson-Schwinger equations (DSE). Key observables include…

High Energy Physics - Phenomenology · Physics 2026-01-27 Xianghui Cao , Yang Li , Chao Shi , James P. Vary , Qun Wang

We investigate charmonium production in the hot medium created by heavy-ion collisions by setting up a framework in which in-medium charmonium properties are constrained by thermal lattice QCD (lQCD) and subsequently implemented into…

Nuclear Theory · Physics 2012-03-13 Xingbo Zhao

We study azimuthal asymmetries in diffractive J/$\psi$ production in ultraperipheral heavy-ion collisions at RHIC and LHC energies using the color glass condensate effective theory. Our calculation successfully describes azimuthal averaged…

High Energy Physics - Phenomenology · Physics 2022-07-15 James Daniel Brandenburg , Zhangbu Xu , Wangmei Zha , Cheng Zhang , Jian Zhou , Yajin Zhou

We calculate the coherent charmonium photoproduction at intermediate energies accounting for the physics of the charmonium bound states and the dependence of the cross section on the region occupied by color using a correspondingly adjusted…

High Energy Physics - Phenomenology · Physics 2007-05-23 L. Frankfurt , L. Gerland , M. Strikman , M. Zhalov

Light-Front Quantization provides a physical, frame-independent formalism for hadron dynamics and structure. Observables such as structure functions, transverse momentum distributions, and distribution amplitudes are defined from the…

High Energy Physics - Phenomenology · Physics 2016-04-20 Stanley J. Brodsky

The J/\Psi(1S) and \Psi'(2S) production near threshold in antiproton-nucleus reactions is calculated on the basis of the Glauber model. The model takes into account the antiproton (pre)absorption, proton Fermi motion, and charmonium…

Nuclear Theory · Physics 2013-05-22 A. B. Larionov , M. Bleicher , A. Gillitzer , M. Strikman

In the energy range of RHIC and LHC the mechanisms of nuclear suppression of charmonia are expected to be strikingly different from what is known for the energy of the SPS. One cannot think any more of charmonium produced on a bound nucleon…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Z. Kopeliovich , A. V. Tarasov , J. Huefner

Charmonium production from the hadron gas formed in ultra-relativistic heavy-ion collisions is studied. Using the $J/\psi$-hadron absorption cross section determined from the nonperturbative quark-exchange model, which has a peak value…

Nuclear Theory · Physics 2009-10-31 C. M. Ko , X. N. Wang , X. F. Zhang

In this paper we investigate the production of charmonium states in two and three photon fusion processes in nucleus -- nucleus collisions at the CERN Large Hadron Collider (LHC) energies. Our results indicate that the experimental study of…

High Energy Physics - Phenomenology · Physics 2023-06-21 R. Fariello , D. Bhandari , C. A. Bertulani , F. S. Navarra

We study the charmonium spectrum using a complete one gluon exchange approach based on a phenomenological relativistic $q\bar{q}$ potential model with Dirac spinors in momentum space. We use phenomenological screening factors to include…

High Energy Physics - Phenomenology · Physics 2017-05-31 D. Molina , M. De Sanctis , C. Fernandez-Ramirez

We investigate charmonium production and the charmonium-nucleon correlation function in pp collisions using the EPOS4+CATS framework. For the first time, the emission source of charmonium-proton pairs is dynamically generated and found to…

High Energy Physics - Phenomenology · Physics 2026-03-31 Jiaxing Zhao , Taesoo Song , Joerg Aichelin , Elena Bratkovskaya , Pol Bernard Gossiaux , Klaus Werner

Charmonium dissociation cross sections due to flavor-exchange charmonium-baryon scattering are computed in the constituent quark model. We present results for inelastic $J/\psi N$ and $\eta_c N$ scattering amplitudes and cross sections into…

Nuclear Theory · Physics 2008-11-26 J. P. Hilbert , N. Black , T. Barnes , E. S. Swanson

In this short review we summarize experimental information and theoretical results for the low-energy dissociation cross sections of charmonia by light hadrons. These cross sections are required for the simulation of charmonium absorption…

Nuclear Theory · Physics 2009-11-10 T. Barnes

The particle production in photon-photon ($\gamma \gamma$) interactions present in electron-ion collisions is investigated. We present calculations for the total cross sections and event rates related to the production of light mesons…

High Energy Physics - Phenomenology · Physics 2024-09-04 Carlos A. Bertulani , Reinaldo Francener , Victor P. Goncalves , Juciene T. de Souza

Dilepton production in heavy-ion collisions at collider energies - i.e., for the Relativistic Heavy-Ion Collider (RHIC) and the Large Hadron Collider (LHC) - is studied within an approach that uses coarse-grained transport simulations to…

Nuclear Theory · Physics 2016-08-22 Stephan Endres , Hendrik van Hees , Marcus Bleicher

We review the statistical hadronization picture for charmonium production in ultra-relativistic nuclear collisions. Our starting point is a brief reminder of the status of the thermal model description of hadron production at high energy.…

Nuclear Theory · Physics 2015-05-13 P. Braun-Munzinger , J. Stachel