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We propose a simple meson-exchange model of the photoproduction of $\rho$- and $\omega$-mesons off protons near threshold ($E_\gamma$ less than 2 GeV). This model provides a good description of the available data and implies a large…

Nuclear Theory · Physics 2010-04-06 Bengt Friman , Madeleine Soyeur

The exclusive photoproduction of upsilon states $\Upsilon(1S)$ and its radially excited states $\Upsilon(2S,3S)$ is investigated in the context of ultra-peripheral collisions at the LHC energies. Predictions are presented for their…

High Energy Physics - Phenomenology · Physics 2016-11-23 M. B. Gay Ducati , F. Kopp , M. V. T. Machado , S. Martins

In this paper, we analyze the application of an analytical gluon distribution based on double-asymptotic scaling to the photoproduction of vector mesons in coherent $pp$, $pA$, and $AA$ collisions at LHC energies, using the color dipole…

High Energy Physics - Phenomenology · Physics 2025-06-30 D. A. Fagundes , M. V. T. Machado

The transverse momentum distributions for inclusive $\eta_{c,b}$ meson described by gluon-gluon interactions from photoproduction processes in relativistic heavy ion collisions are calculated. We considered the color singlet (CS) and color…

High Energy Physics - Phenomenology · Physics 2018-01-04 Gong-Ming Yu , Gao-Gao Zhao , Zhen Bai , Yan-Bing Cai , Hai-Tao Yang , Jian-Song Wang

The integrated cross section for the incoherent photoproduction of vector mesons on nuclei $\gamma^* A \to VX$, $X\not=A$, is calculated within Glauber theory and as a function of the photon energy. The inverse of the longitudinal momentum…

Nuclear Theory · Physics 2009-10-30 J. Hüfner , B. Z. Kopeliovich , J. Nemchik

The light scalar mesons, discovered over forty years ago, became a challenge for the naive quark-antiquark model from the outset. At present the nontrivial nature of these states is no longer denied practically anybody. Two-photon physics…

High Energy Physics - Phenomenology · Physics 2015-05-13 N. N. Achasov , G. N. Shestakov

Rapidity distributions of vector mesons are computed in dipole model proton-lead ultraperipheral collisions(UPCs) at the CERN Larger Hadron Collider(LHC). The dipole model framework is implemented in the calculations of cross sections in…

High Energy Physics - Phenomenology · Physics 2018-05-17 Ya-Ping Xie , Xurong Chen

The cross sections for the glueball candidates production in quasi-real photon-photon collisions and on central diffraction processes, i.e. double Pomeron exchange, in heavy ion interactions at RHIC and LHC are computed. The rates for these…

High Energy Physics - Phenomenology · Physics 2011-02-28 M. V. T. Machado , M. L. L. da Silva

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

We present results of a calculation of the cross section for the production of a charged Higgs boson in association with an electron and a neutrino at electron-positron colliders (e+ e- -> H+ e- nu_e-bar, H- e+ nu_e). We study predictions…

High Energy Physics - Phenomenology · Physics 2008-11-26 Oliver Brein , Terrance Figy

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

Using the experimental data from the ALICE program on the centrality dependence of the transverse momentum ($p_T$) spectra in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV, we show that the double-Tsallis distribution and the generalized…

Nuclear Theory · Physics 2017-05-24 Xuejiao Yin , Lilin Zhu , Hua Zheng

We give the first phenomenological predictions of cross sections and azimuthal correlations for the inclusive di-hadron production in the full NLA BFKL approach. This process shares the same theoretical framework with the well konwn…

High Energy Physics - Phenomenology · Physics 2017-10-03 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

Exclusive production of transversely polarized heavy vector mesons in deep inelastic scattering at high energy is calculated at next-to-leading order accuracy in the Color Glass Condensate framework. In addition to the first QCD correction…

High Energy Physics - Phenomenology · Physics 2022-09-12 Heikki Mäntysaari , Jani Penttala

In high-energy nucleon-nucleon-collisions large meson production rates are observed. As an alternative to meson exchange models here we propose a nonperturbative treatment of the quark-antiquark production from the mean field of colliding…

Nuclear Theory · Physics 2009-09-25 S. Loh T. S. Biro U. Mosel

Heavy nuclei at collider energies are a source of high energy Weizsaecker-Williams photons. This photon flux may be utilized to study high energy photon-nucleus interactions. Here we concentrate on the coherent diffractive production of…

High Energy Physics - Phenomenology · Physics 2013-05-30 A. Cisek , W. Schäfer , A. Szczurek

In this work we estimate the differential cross section for the high energy deeply virtual Compton scattering on a photon target within the QCD dipole-dipole scattering formalism. For the phenomenology, a saturation model for the…

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

We review model calculations of exclusive vector meson production in ultraperipheral heavy ion collisions. We highlight differences and similarities between different dipole models and leading twist shadowing calculations. Recent color…

Nuclear Theory · Physics 2024-04-18 Björn Schenke , Heikki Mäntysaari , Farid Salazar , Chun Shen , Wenbin Zhao

A study of cross sections and azimuthal correlation moments for the inclusive production of two, light charged hadrons featuring large transverse momenta and well separated in rapidity at LHC energies, including BFKL resummation effects…

High Energy Physics - Phenomenology · Physics 2017-10-04 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

We estimate the production cross sections of hypernuclei in projectile like fragment (PLF) in heavy ion collisions. The discussed scenario for the formation cross section of hypernucleus is: (a) Lambda particles are produced in the…

High Energy Physics - Phenomenology · Physics 2014-11-20 V. Topor Pop , S. Das Gupta
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