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相关论文: Double vector meson production from the BFKL equat…

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By using the Reggeometric Pomeron model for vector meson production which successfully describes the high energy lepton-nucleon data, we analyse the light meson production in ultra-peripheral heavy ion collisions at the Large Hadron…

高能物理 - 唯象学 · 物理学 2023-04-05 László Jenkovszky , Érison S. Rocha , Magno V. T. Machado

The contribution of the QCD Pomeron to the process AA -> AA J/Psi J/Psi is discussed. We focus on the photon-photon collision, with the quasi-real photon coming from the Weizsacker - Williams spectrum of the nuclei. We calculate the cross…

高能物理 - 唯象学 · 物理学 2011-09-13 V. P. Goncalves , M. V. T. Machado

The reaction \gamma\gamma ---> J/Psi J/Psi is discussed assuming dominance of the QCD BFKL pomeron exchange. We give prediction for the cross-section of this process for LEP2 and TESLA energies. We solve the BFKL equation in the non-forward…

高能物理 - 唯象学 · 物理学 2009-10-31 Jan Kwiecinski , Leszek Motyka

Relativistic heavy ions are copious sources of virtual photons. The large photon flux gives rise to a substantial photonuclear interaction probability at impact parameters where no hadronic interactions can occur. Multiple photonuclear…

核理论 · 物理学 2009-11-07 Anthony J. Baltz , Spencer R. Klein , Joakim Nystrand

We calculate the nuclear cross section for coherent and incoherent vector meson production within the QCD color dipole picture, including saturation effects. Theoretical estimates for scattering on both light and heavy nuclei are given over…

高能物理 - 唯象学 · 物理学 2009-08-26 V. P. Goncalves , M. S. Kugeratski , M. V. T. Machado , F. S. Navarra

The high-energy behaviour of the total cross section for highly virtual photons, as predicted by the BFKL equation at next-to-leading order (NLO) in QCD, is discussed. The NLO BFKL predictions, improved by the BLM optimal scale setting, are…

高能物理 - 唯象学 · 物理学 2009-09-11 S. J. Brodsky , V. S. Fadin , V. T. Kim , L. N. Lipatov , G. B. Pivovarov

Double inclusive cross-sections for gluon production in collision of two nucleons with two nucleons are studied in the BFKL approach. Various contributions include emission from the pomerons attached to the participants, from the BFKL…

高能物理 - 唯象学 · 物理学 2015-06-18 M. A. Braun

A comprehensive analysis of the photoproduction of $J/\Psi$ and $\Upsilon$ mesons in peripheral $PbPb$ collisions at the center - of - mass energies of the Large Hadron Collider (LHC) is performed, considering distinct assumptions for the…

In this paper we analyse the double vector meson production in photon -- hadron ($\gamma h$) interactions at $pp/pA/AA$ collisions and present predictions for the $\rho\rho$, $J/\Psi J/\Psi$ and $\rho J/\Psi$ production considering the…

高能物理 - 唯象学 · 物理学 2016-08-03 V. P. Goncalves , B. D. Moreira , F. S. Navarra

The production of jet pairs with small transverse momentum and large relative rapidity in high energy hadron-hadron collisions is studied. The rise of the parton-level cross section with increasing rapidity gap is a fundamental prediction…

高能物理 - 唯象学 · 物理学 2009-10-28 W. J. Stirling

A study of double charmed meson production in proton-proton and proton-nucleus collisions at the LHC energies is performed. Based on the color dipole formalism developed in the transverse momentum representation and the double parton…

高能物理 - 唯象学 · 物理学 2023-09-15 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

We investigate the inclusive production of double quarkonia ($J/\psi$, $\psi(2S)$, $\Upsilon$ mesons) in polarized hadron-hadron collisions, considering the kinematic configuration where the transverse momentum of each pair of bound states…

高能物理 - 唯象学 · 物理学 2026-02-09 Carlo Flore , Cristian Pisano

We evaluate the cross sections for the production of vector mesons in exclusive ultraperipheral proton-ion collisions at LHC. We find that the rates are high enough to study the energy and momentum transfer dependence of vector mesons -…

高能物理 - 唯象学 · 物理学 2009-11-11 L. Frankfurt , M. Strikman , M. Zhalov

We discuss the coherent photo- and leptoproduction of vector mesons from deuterium at intermediate (virtual) photon energies, 3 GeV < nu < 30 GeV. These processes provide several options to explore the space-time evolution of small size…

高能物理 - 唯象学 · 物理学 2008-11-26 L. Frankfurt , W. Koepf , J. Mutzbauer , G. Piller , M. Sargsian , M. Strikman

Ultra-peripheral Pb-Pb collisions, in which the two nuclei pass close to each other, but at an impact parameter greater than the sum of their radii, provide information about the initial state of nuclei. In particular, heavy vector meson…

核实验 · 物理学 2019-08-13 E. L. Kryshen

In this paper we analyse the exclusive vector meson photoproduction in the recent run using Xenon-ions at energy of 5.44 TeV performed by the Large Hadron Collider. We focus on the ultraperipheral collisions and provide theoretical…

高能物理 - 唯象学 · 物理学 2018-07-18 F. Kopp , M. V. T. Machado

Vector meson production in ultra-peripheral collisions of heavy ions at LHC is calculated in VDM and color dipole approaches.

高能物理 - 唯象学 · 物理学 2007-06-12 Yu. P. Ivanov , B. Z. Kopeliovich , I. Schmidt

We present the first evaluation of color dipole cross section from experimental data on diffractive photo- and electroproduction of vector mesons. The dipole-size and energy dependence of the found dipole cross section is consistent with…

高能物理 - 唯象学 · 物理学 2016-08-15 J. Nemchik , N. N. Nikolaev , E. Predazzi , B. G. Zakharov

We discuss nuclear cross sections for $AA \to AAV$ and $AA \to AAVV$ reactions with one or two vector mesons in the final state. Our analysis is done in the impact parameter space equivalent photon approximation. This approach allows to…

高能物理 - 唯象学 · 物理学 2016-12-21 M. Klusek-Gawenda , A. Szczurek

The production in high-energy hadron collisions of a pair of jets with large rapidity separation is studied in an improved BFKL formalism. By recasting the analytic solution of the BFKL equation as an explicit order-by-order sum over…

高能物理 - 唯象学 · 物理学 2016-08-25 Lynne H. Orr , W. J. Stirling