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We discuss two collider processes which combine a diffractively produced $\rho$ meson separated by a large rapidity gap from a hard exclusive scattering of a Pomeron on a nucleon, giving rise to a lepton pair or to a second meson. These two…

High Energy Physics - Phenomenology · Physics 2022-07-21 W. Cosyn , B. Pire , L. Szymanowski

The diffractive electro- or photo-production of two mesons separated by a large rapidity gap gives access to generalized parton distributions (GPDs) in a very specific way. First, these reactions allow to easily access the chiral-odd…

High Energy Physics - Phenomenology · Physics 2020-09-10 W. Cosyn , B. Pire , L. Szymanowski

Hadrons are composite objects made of quarks and gluons, and during a collision one can have several elementary interactions between the constituents. These elementary interactions, using an appropriate theoretical framework, can be related…

High Energy Physics - Phenomenology · Physics 2009-10-29 Paolo Lipari , Maurizio Lusignoli

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

We present a study of heavy quarkonium production in hard diffractive process by the Pomeron exchange for Tevatron and LHC energies. The numerical results are computed using recent experimental determination of the diffractive parton…

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

Coherence phenomena, and the non-universality of parton structure of the effective Pomeron are explained. New hard phenomena directly calculable in QCD such as diffractive electroproduction of states with $M^2\ll Q^2$ as well as new options…

High Energy Physics - Phenomenology · Physics 2007-05-23 Leonid Frankfurt , Mark Strikman

The diffractive heavy quark cross sections are estimated considering photon-Pomeron ($\gamma \pom$) interactions in hadron - hadron at RHIC, Tevatron, and CERN LHC energies. We assume the validity of the hard diffractive factorization and…

High Energy Physics - Phenomenology · Physics 2015-06-03 V. P. Goncalves , M. M. Machado

We use perturbative QCD and parton-hadron duality to estimate the cross sections for the diffractive electroproduction of rhoprime(1-) and rho(3-) resonances which occur in the 1.3-1.8 GeV mass interval. We present the cross sections and…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. D. Martin , M. G. Ryskin , T. Teubner

We estimate the cross sections for the production of resonances, pion pairs and a central cluster of hadrons in peripheral heavy-ion collisions through two-photon and double-pomeron exchange, at energies that will be available at RHIC and…

Nuclear Theory · Physics 2009-11-06 C. G. Roldao , A. A. Natale

In this paper, we present the results from phenomenological analysis of Z boson pair hard diffractive production at the LHC. The calculation is based on the Regge factorization approach. Diffractive parton density functions extracted by the…

High Energy Physics - Phenomenology · Physics 2017-04-05 Hao Sun

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

Measurements of soft and hard diffractive processes have been performed at the Tevatron p-pbar collider during the past decade. Diffractive events are studied by means of identification of one or more rapidity gaps and/or a leading…

High Energy Physics - Phenomenology · Physics 2017-08-23 Michele Gallinaro

The rates for diffractive quarkonium plus prompt-photon associated production at the LHC are estimated. The theoretical framework considered in the J/Psi (or Upsilon) production associated with a direct photon at the hadron collider is the…

High Energy Physics - Phenomenology · Physics 2010-01-15 M. B. Gay Ducati , M. M. Machado , M. V. T. Machado

The photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the QCD color dipole picture, with particular emphasis on the saturation model. The integrated cross section and the rapidity…

High Energy Physics - Phenomenology · Physics 2011-09-13 V. P. Goncalves , M. V. T. Machado

An alternative process is proposed for the diffractive Higgs boson production in peripheral $pp$ collisions, exploring it through the photon-proton interaction by Double Pomeron Exchange. It is estimated the event rate of the diffractive…

High Energy Physics - Phenomenology · Physics 2011-08-04 M. B. Gay Ducati , G. G. Silveira

The inclusive diffractive quarkonium photoproduction in $pp$ and $pA$ collisions is investigated considering the Resolved Pomeron Model to describe the diffractive interaction. We estimate the rapidity and transverse momentum distributions…

High Energy Physics - Phenomenology · Physics 2017-11-01 V. P. Goncalves , L. S. Martins , B. D. Moreira

We explore an alternative process for the diffractive Higgs boson production in peripheral pp collisions arising from Double Pomeron Exchange in photon-proton interaction. We introduce the impact factor formalism in order to enable the…

High Energy Physics - Phenomenology · Physics 2008-12-30 M. B. Gay Ducati , G. G. Silveira

The large transverse momentum muon pair and W boson productions in the quark initiated coherent diffractive processes at hadron colliders are discussed under the framework of the two-gluon exchange parametrization of the Pomeron model. In…

High Energy Physics - Phenomenology · Physics 2009-10-31 Feng Yuan , Kuang-Ta Chao

The rich structure of photon-exchange processes at hadron colliders is studied. We discuss central vector meson production pp --> p + J/psi + p, W production pp --> p + W + X and mu+ mu- production. Each process has distinct, and large,…

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

The future Electron - Ion ($eA$) Collider is expected to probe the high energy regime of the QCD dynamics, with the exclusive vector meson production cross section being one of the most promising observables. In this paper we complement…

High Energy Physics - Phenomenology · Physics 2016-08-24 V. P. Goncalves , F. S. Navarra , D. Spiering
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