English
Related papers

Related papers: Diffractive vector meson production at large-$t$ i…

200 papers

In this contribution we study the photoproduction of quarkonium in coherent proton-proton and nucleus-nucleus interactions at the LHC. The integrated cross sections and rapidity distributions are estimated using the Color Glass Condensate…

High Energy Physics - Phenomenology · Physics 2007-06-20 V. P. Goncalves , M. V. T. Machado

The inclusive $D^0$ photoproduction in $PbPb$ collisions at the center - of - mass energies of the Large Hadron Collider (LHC) is investigated considering the color dipole $S$ - matrix approach. The analytical expressions for the…

High Energy Physics - Phenomenology · Physics 2025-06-04 Victor P. Goncalves , Luana Santana , Wolfgang Schäfer

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

We investigate diffractive events in hadron-hadron collisions, in which two jets are produced and separated by a large rapidity gap. Using a renormalisation-group improved NLL kernel implemented in the HERWIG Monte Carlo program, we show…

High Energy Physics - Phenomenology · Physics 2014-11-20 Christophe Royon

Recent measurements of diffractive vector-meson production with the general-purpose detectors H1 and ZEUS in electron-proton interactions with 300 GeV center-of-mass energy at the HERA accelerator complex have stimulated great interest in…

High Energy Physics - Experiment · Physics 2007-05-23 J. A. Crittenden

In this paper we present a comprehensive analysis of exclusive vector meson photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies using the Color Dipole formalism. The rapidity distributions and total cross sections for…

High Energy Physics - Phenomenology · Physics 2017-12-06 V. P. Goncalves , M. V. T. Machado , B. D. Moreira , F. S. Navarra , G. Sampaio dos Santos

We calculate $p_T$-dependences of diffractive vector meson photo- and electroproduction in electron-proton collisions with and without proton dissociation at small momenta transfers. The calculated slopes are in good agreement with the…

High Energy Physics - Phenomenology · Physics 2015-06-25 M. G. Ryskin , Yu. M. Shabelski , A. G. Shuvaev

We demonstrate that the distinctive features of the forward differential cross section of diffractive leptoproduction of a vector meson can be legitimately calculated in perturbative QCD in terms of the light-cone $q \bar q$ wave function…

High Energy Physics - Phenomenology · Physics 2009-09-25 Stanley J. Brodsky , L. Frankfurt , J. F. Gunion , A. H. Mueller , M. Strikman

We compute the cross section for exclusive double-diffractive gamma-gamma production at the Tevatron, $p{\bar p} \to p + \gamma\gamma + {\bar p}$, and the LHC. We evaluate both the gluon-gluon and quark-antiquark t-channel exchange…

High Energy Physics - Phenomenology · Physics 2011-09-13 V. A. Khoze , A. D. Martin , M. G. Ryskin , W. J. Stirling

The differential cross section, $d\sigma/dt$, for $\rho^0$ meson photoproduction on the proton above the resonance region ($2.6<W<2.9$ GeV) was measured up to a momentum transfer $-t = 5$ GeV$^2$ using the CLAS detector at the Thomas…

High Energy Physics - Experiment · Physics 2010-04-06 CLAS collaboration , M. Battaglieri

We discuss the salient features of exclusive vector meson production in heavy ion collisions at LHC energies. Special attention is paid to the space-time picture of the process. We account for both coherent and incoherent contributions. The…

High Energy Physics - Phenomenology · Physics 2019-09-04 V. A. Khoze , A. D. Martin , M. G. Ryskin

The cross section for the nuclear diffractive dissociation in proton-lead collisions at the LHC is estimated. Based on the current theoretical uncertainties for the single (target) diffactive cross section in hadron-hadron reactions one…

High Energy Physics - Phenomenology · Physics 2015-06-19 G. Sampaio dos Santos , M. V. T. Machado

We explore the possibility of using ultra-peripheral proton-lead collisions at the LHC to study inclusive vector-quarkonium photoproduction, that occurs when a quasi-real photon emitted by a fully stripped lead ion breaks a proton to…

High Energy Physics - Phenomenology · Physics 2024-09-04 Jean-Philippe Lansberg , Kate Lynch , Charlotte Van Hulse , Ronan McNulty

We present the cross sections for both electromagnetic and diffractive dissociation of protons for semiexclusive production of $J/\psi$ mesons in proton-proton collisions at the LHC. Differential distributions in missing mass ($M_X$), as…

High Energy Physics - Phenomenology · Physics 2017-11-01 Wolfgang Schäfer , Anna Cisek , Antoni Szczurek

We discuss diffractive production of open charm and bottom mesons at the LHC. The differential cross sections for single- and central-diffractive mechanisms for $c\bar c$ and $b\bar b$ pair production are calculated in the framework of the…

High Energy Physics - Phenomenology · Physics 2015-03-25 Marta Luszczak , Rafal Maciula , Antoni Szczurek

Diffractive processes in photon-proton interactions at HERA offer the opportunity to improve the understanding of the transition between the soft, non-perturbative regime in hadronic interactions at $Q^2 = 0$ and the perturbative region at…

High Energy Physics - Phenomenology · Physics 2019-08-14 A. A. Savin

The diffractive photoproduction of J/psi mesons is measured with the H1 detector at the ep collider HERA using an integrated luminosity of 78 pb^-1. The differential cross section d sigma(gamma p -> J/psi Y) / d t is studied in the range 2…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

The double quarkonium production in single and double diffractive processes is investigated considering $pp$ collisions at the Run 2 LHC energy. Using the nonrelativistic QCD (NRQCD) factorization formalism for the quarkonium production and…

High Energy Physics - Phenomenology · Physics 2018-07-25 C. Brenner Mariotto , V. P. Goncalves , R. Palota da Silva

Elastic production of vector mesons $\gamma^{*} N\to V N$ is the pomeron-exchange dominated diffractive reaction with much potential of probing the BFKL pomeron. The BFKL pomeron can conveniently be described in terms of the dipole cross…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Nemchik , N. N. Nikolaev , B. G. Zakharov

We discuss central-exclusive production (CEP) of photons via different fusion processes in the reaction $pp \to pp \gamma$ at high energies, available at RHIC and LHC, within the tensor-pomeron model. We consider two types of processes, the…

High Energy Physics - Phenomenology · Physics 2023-04-26 Piotr Lebiedowicz , Otto Nachtmann , Antoni Szczurek