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Two-photon processes in relativistic heavy-ion collisions have emerged as a critical probe of quantum electrodynamics in ultra-intense electromagnetic fields, with recent focus extending beyond dileptons to hadronic final states. At…

High Energy Physics - Phenomenology · Physics 2026-02-26 Luobing Wang , Xinbai Li , Zebo Tang , Xin Wu , Wangmei Zha

In this letter we present, for the first time, the results for the photoproduction of massive gauge bosons in proton -- proton, proton -- Lead and Lead -- Lead collisions at the Large Hadron Collider (LHC), High -- Energy LHC (HE -- LHC)…

High Energy Physics - Phenomenology · Physics 2020-06-24 R. O. Coelho , V. P. Goncalves

The double meson production in ultraperipheral heavy ions collisions is addressed, focusing on the particular case of rho-J/Psi from two-photon reactions. The cross section at photon level is obtained using distinct parameterizations for…

High Energy Physics - Phenomenology · Physics 2009-01-07 V. P. Goncalves , M. V. T. Machado

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…

High Energy Physics - Phenomenology · Physics 2023-09-15 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

We have investigated the single and double diffractive production of dileptons and photons in ultra-peripheral collisions at the Large Hadron Collider (LHC). Utilizing advanced theoretical models that integrate quantum electrodynamics (QED)…

High Energy Physics - Phenomenology · Physics 2024-05-28 Gongming Yu , Rabia Hameed , Liyuan Hu , Qiang Hu

An alternative process is presented for diffractive Higgs boson production in peripheral $pp$ collisions, where the particles interact through the Double Pomeron Exchange. The event rate is computed as a central-rapidity distribution for…

High Energy Physics - Phenomenology · Physics 2009-11-13 M. B. Gay Ducati , G. G. Silveira

Cross sections for the production of pairs of photons plus two additional jets produced from double parton scattering in high-energy proton-proton collisions at the LHC are calculated for the first time. The estimates are based on the…

High Energy Physics - Phenomenology · Physics 2016-01-20 Junquan Tao , Sijing Zhang , Yuqiao Shen , Jiawei Fan , Guoming Chen , Hesheng Chen

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…

Nuclear Experiment · Physics 2019-08-13 E. L. Kryshen

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

In this paper we present a detailed comparison of the dijet production by photon -- photon, photon -- pomeron and pomeron -- pomeron interactions in $pp$, $pA$ and ${\rm AA}$ collisions at the LHC energy. The transverse momentum, pseudo --…

High Energy Physics - Phenomenology · Physics 2017-10-18 E. Basso , V. P. Goncalves , A. K. Kohara , M. S. Rangel

We discuss production of two $\mu^+\mu^-$ pairs in ultraperipheral ultrarelativistic heavy ion collisions at the LHC. We take into account electromagnetic (two-photon) double-scattering production and for a first time direct $\gamma\gamma$…

High Energy Physics - Phenomenology · Physics 2018-01-17 Andreas van Hameren , Mariola Klusek-Gawenda , Antoni Szczurek

A generic expression of double-parton scattering cross sections in high-energy nucleus-nucleus (A-A) collisions is derived as a function of the corresponding single-parton hard cross sections and of the A-A event centrality. We consider the…

High Energy Physics - Phenomenology · Physics 2013-11-08 David d'Enterria , Alexander M. Snigirev

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

Nuclear Theory · Physics 2015-06-17 Mariola Klusek-Gawenda , Antoni Szczurek

In this letter we study the diffractive photoproduction of heavy quarks in hadronic (pp/pA/AA) interactions for Tevatron and LHC energies. The integrated cross section and rapidity distribution for the process h_1 h_2 --> h_1 h_2 QQBAR (h_i…

High Energy Physics - Phenomenology · Physics 2008-11-26 V. P. Goncalves , M. V. T. Machado

The strong electromagnetic fields of short duration associated with relativistic heavy ions make a heavy-ion collider a unique tool to study two-photon and photonuclear collisions. In this talk, we introduce the principles of…

Nuclear Experiment · Physics 2019-08-13 Yury Gorbunov

We discuss two-photon and hadronic production of $B_c$ mesons in nonrelativistic bound state approximation and to lowest order in the coupling constants $\alpha$ and $\alpha_s$. It is shown that in photon-photon collisions, heavy quark…

High Energy Physics - Phenomenology · Physics 2011-01-27 Karol Kolodziej , Arnd Leike , Reinhold Rueckl

The vector meson production in coherent hadron-hadron interactions at LHC energies is studied assuming that the color singlet $t$-channel exchange carries large momentum transfer. We consider the non-forward solution of the BFKL equation at…

High Energy Physics - Phenomenology · Physics 2014-11-20 V. P. Goncalves , W. K. Sauter

We investigate the photoproduction of $\rho$ mesons in ultraperipheral heavy ion collisions at RHIC and LHC energies in the dipole approach and within two phenomenological models based on the the Color Glass Condensate (CGC) formalism. We…

High Energy Physics - Phenomenology · Physics 2009-11-10 V. P. Goncalves , M. V. T. Machado

Exclusive vector meson photoproduction associated with a leading baryon ($B = n, \Delta^+, \Delta^0$) in $pp$ and $pA$ collisions at RHIC and LHC energies is investigated using the color dipole formalism and taking into account nonlinear…

High Energy Physics - Phenomenology · Physics 2018-04-11 F. Carvalho , V. P. Goncalves , F. S. Navarra , D. Spiering

Photon-photon collisions are investigated in the framework of the two-component Dual Parton Model. The model is shown to agree well to hadron production data from hadron-hadron and photon-hadron collisions. The multiparticle production in…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Engel , J. Ranft