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Related papers: Probing coherent charmonium photoproduction off li…

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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

We study the $J/\psi$ photoproduction from nuclei near the kinematic threshold within the first collision model, based on the nuclear spectral function, for incoherent primary photon--nucleon charmonium creation processes. The model takes…

Nuclear Theory · Physics 2015-10-02 E. Ya. Paryev , Yu. T. Kiselev

We argue that study of the cross section of coherent photo(electro) production of vector mesons off nuclear targets provides an effective method to probe the leading twist hard QCD regimes of color transparency and perturbative color…

High Energy Physics - Phenomenology · Physics 2014-11-17 L. Frankfurt , M. Strikman , M. Zhalov

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

The ALICE Collaboration at the LHC has measured the J/$\psi$ and $\psi^{'}$ photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV. The charmonium is identified via its leptonic decay for events…

Nuclear Experiment · Physics 2014-11-10 ALICE Collaboration

We study the charmonium coherent photoproduction and hadroproduction consistently with modifications from both cold and hot nuclear matters. The strong electromagnetic fields from fast moving nucleus interact with the other target nucleus,…

Nuclear Theory · Physics 2018-01-23 Wei Shi , Wangmei Zha , Baoyi Chen

The photoproduction of $J/\psi$ meson off the nucleon is investigated within a dynamical model approach based on a Hamiltonian which describes the reaction mechanisms of the Pomeron exchange, meson exchange, and direct $J/\psi$ radiation…

High Energy Physics - Phenomenology · Physics 2025-03-14 Sang-Ho Kim

We discuss the production of charmonium states in antiproton-nucleus collisions at the $\psi'$ threshold. It is explained that measurements in $\bar p A$ collisions will allow to get new information about the strengths of the inelastic…

Nuclear Theory · Physics 2009-11-11 L. Gerland , L. Frankfurt , M. Strikman

In the present work we explore the inclusive $\psi(2S)$ meson photoproduction from nuclei near the kinematic threshold within the collision model, based on the nuclear spectral function, for incoherent direct photon--nucleon charmonium…

Nuclear Theory · Physics 2025-03-20 E. Ya. Paryev

So far no theoretical tool for the comprehensive description of exclusive electroproduction of vector mesons off nuclei at medium energies has been developed. We suggest a light-cone QCD formalism which is valid at any energy and…

High Energy Physics - Phenomenology · Physics 2009-11-07 B. Z. Kopeliovich , J. Nemchik , A. Schaefer , A. V. Tarasov

In the article, the study of unpolarized $J/\psi$ production in proton-proton collisions is presented. The Soft Gluon Resummation approach as a TMD framework was used for description of small-$p_T^{}$ production cross section. The Improved…

High Energy Physics - Phenomenology · Physics 2025-11-19 Vladimir Saleev , Kirill Shilyaev

We study the inclusive heavy charmonium $\chi_{c1}(1P)$ photoproduction from nuclei near the kinematic threshold within the collision model, based on the nuclear spectral function, for incoherent direct photon--nucleon charmonium creation…

Nuclear Theory · Physics 2026-05-19 E. Ya. Paryev

We study the J/Psi production from nuclei near the kinematic threshold within the collision model, based on the nuclear spectral function, for incoherent primary proton-nucleon charmonium creation processes. The model takes into account the…

Nuclear Theory · Physics 2015-06-22 Yu. T. Kiselev , E. Ya. Paryev , Yu. M. Zaitsev

$J/\psi$ and $\psi'$ production cross sections in fixed-target experiment is calculated, considering the contributions from both color-singlet and color-octet mechanisms.The results are applied to the investigations of the $J/\psi$…

High Energy Physics - Phenomenology · Physics 2007-05-23 Xiao-Fei Zhang , Cong-Feng Qiao , Xiao-Xia Yao , Wei-Qin Chao

We find that available data on $J/\Psi$ photoproduction at $|t|{\ge}$1 GeV are energy independent over the range $22{\le}\sqrt{s}{\le}170$ GeV and show a very soft $t$ dependence. Through a systematic analysis of the data we detect a new…

Nuclear Theory · Physics 2007-05-23 A. Sibirtsev , S. Krewald , A. W. Thomas

Elastic virtual photoproduction cross sections gamma^*p -> J/psi(psi')p and total charmonium-nucleon cross sections for J/psi, psi' and chi states are calculated in a parameter free way with the light-cone dipole formalism and the same…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. Huefner , Yu. P. Ivanov , B. Z. Kopeliovich , A. V. Tarasov

The available data on $J/\Psi$ photoproduction are analyzed in terms of pomeron exchange, two gluon exchange and photon-gluon fusion models. Allowing the pomeron-quark interaction to be flavour dependent and introducing the soft and hard…

Nuclear Theory · Physics 2007-05-23 A. Sibirtsev , S. Krewald , A. W. Thomas

A dynamical model based on a phenomenological charm quark-nucleon($c$-N) potential $v_{cN}$ and the Pomeron-exchange mechanism is constructed to investigate the $J/\Psi$ photo-production on the nucleon from threshold to invariant mass…

Nuclear Theory · Physics 2024-04-12 S. Sakinah , T. -S. H. Lee , Ho-Meoyng Choi

We calculate the centrality dependence for coherent photoproduction of very low-$p_{T}$ $J/\psi$ at Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC) energies within the impact parameter dependent saturated color dipole…

High Energy Physics - Phenomenology · Physics 2021-05-17 Gongming Yu , Yanbing Cai , Yongping Fu , Haitao Yang , Quangui Gao , Qiang Hu , Liyuan Hu , Wei Li , Yushou Song

$J/\Psi$ dissociation in collisions with nucleons is studied within a boson exchange model and the energy dependence of the dissociation cross section is calculated from the threshold for $\Lambda_c{\bar D}$ production to high energies. We…

Nuclear Theory · Physics 2010-02-17 A. Sibirtsev , K. Tsushima , A. W. Thomas
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