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We have applied the Interacting Gluon Model (IGM) to calculate diffractive mass spectra measured recently in e-p collisions at HERA. We show that it is possible to treat them in terms of gluon-gluon collisions in the same way as was done…

High Energy Physics - Phenomenology · Physics 2009-12-30 F. O. Durães , F. S. Navarra , G. Wilk

The Interacting Gluon Model (IGM) is a tool designed to study energy flow, especially stopping and leading particle spectra, in high energy hadronic collisions. In this model, valence quarks fly through and the gluon clouds of the hadrons…

High Energy Physics - Phenomenology · Physics 2015-06-25 F. O. Durães , F. S. Navarra , G. Wilk

We discuss the leading particle spectra and diffractive mass spectra from the novel point of view, namely by treating them as particular examples of the general energy flow phenomena taking place in the multiparticle production processes.…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. O. Duraes , F. S. Navarra , G. Wilk

Using a QCD inspired model developed by our group for particle production, the Interacting Gluon Model (IGM), we have made a systematic analysis of all available data on leading particle spectra. These data include diffractive collisions…

High Energy Physics - Phenomenology · Physics 2009-10-31 F. O. Durães , F. S. Navarra , G. Wilk

We calculate spectrum of diffractively produced gluons in onium-heavy nucleus collisions at high energies. We show that it exhibits a characteristic dependence on nucleus atomic number A and energy/rapidity. We argue that this dependence…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yang Li , Kirill Tuchin

We investigate several fluctuation effects in high-energy hadronic and nuclear collisions through the analysis of different observables. To introduce fluctuations in the initial stage of collisions, we use the Interacting Gluon Model (IGM)…

High Energy Physics - Phenomenology · Physics 2016-09-06 Y. Hama , T. Kodama , Samya Paiva

In this paper we consider a small-$x$ model for gluon GTMDs that we fit to data on diffractive dijet production in electron-proton collisions obtained by HERA's H1 Collaboration. Assuming a small number of free parameters, each with a…

High Energy Physics - Phenomenology · Physics 2021-10-20 Daniël Boer , Chalis Setyadi

We propose a new model for a homogeneous description of hadron-hadron and hadron-nucleus collisions, the Gluon Exchange Model, fundamentally based on color octet (gluon) exchange. In proton-proton collisions we provide an exact description…

Nuclear Theory · Physics 2021-03-17 Marek Jeżabek , Andrzej Rybicki

We study the diffractive jet production in electron-ion collisions in the kinematical region where the mass $M_X$ of the diffractive final state is larger than $Q^2$. Based on parton saturation framework predictions are done for the…

High Energy Physics - Phenomenology · Physics 2020-09-16 G. M. Peccini , L. S. Moriggi , M. V. T. Machado

We discuss some phenomenological applications of an infrared finite gluon propagator characterized by a dynamically generated gluon mass. In particular we compute the effect of the dynamical gluon mass on $pp$ and ${\bar{p}}p$ diffractive…

High Energy Physics - Phenomenology · Physics 2011-08-04 E. G. S. Luna

The long standing mystery of smallness of diffractive dissociation of hadrons to large effective masses (the Pomeron-proton cross section is only 2 mb) witnesses that the gluonic clouds of valence quarks are so small (r_0=0.3fm) that soft…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. Z. Kopeliovich

The recent data from H1 Collaboration on hadron multiplicity in diffractive DIS has been studied in the framework of perturbative QCD as a function of invariant diffractive mass. The formulas obtained explain the observed excess of particle…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. J. M. Covolan , A. V. Kisselev

Diffractive deep inelastic events with a large rapidity gap are analyzed by using a Regge model for the pomeron flux and a gluonic content for the pomeron. Contrary to the expectations, the simplest assumption for the pomeron trajectory…

High Energy Physics - Phenomenology · Physics 2009-10-28 R. Fiore , L. L. Jenkovszky , F. Paccanoni

We study coherent and incoherent diffractive hadron production in high energy quarkonium--heavy nucleus collisions as a probe of the gluon saturation regime of QCD. Taking this process as a model for pA collisions, we argue that the…

High Energy Physics - Phenomenology · Physics 2009-06-30 Kirill Tuchin

The charged particle multiplicity distribution in high energy hadronic and nuclear collisions receive contribution from both diffractive and non diffractive processes. It is experimentally challenging to segregate diffractive events from…

High Energy Physics - Phenomenology · Physics 2022-06-08 Sadhana Dash , Nirbhay Behera , Basanta Nandi

Models of hadron structure are associated with a hadronic scale which allows by perturbative evolution to calculate observables in the deep inelastic region. The resolution of Dyson-Schwinger equations leads to the freezing of the QCD…

High Energy Physics - Phenomenology · Physics 2011-04-05 A. Courtoy , S. Scopetta , V. Vento

We present a Monte-Carlo simulation of energy deposition process in relativistic heavy-ion collisions based on a new realization of the Interacting-Gluon-Model (IGM) for high energy $N-N$ collisions. In particular we show results for proton…

High Energy Physics - Phenomenology · Physics 2015-06-25 Q. J. Liu , W. Q. Chao , G. Wilk

Diffractive deeply inelastic scattering from a hadron is described in terms of diffractive quark and gluon distributions. If the transverse size of the hadronic state is sufficiently small, these distributions are calculable using…

High Energy Physics - Phenomenology · Physics 2009-10-31 F. Hautmann , Z. Kunszt , D. E. Soper

We discuss diffractive dissociation of gluons into heavy quark pairs. The particular mechanism is similar to the diffractive dissociation of virtual photons into quarks, which drives diffractive deep inelastic production of charm in the…

High Energy Physics - Phenomenology · Physics 2015-06-16 Marta Luszczak , Wolfgang Schafer , Antoni Szczurek

In this work we analyse applicability of regge-based models to hadron interactions. Commonly-used extensions of pure regge model are found to be failed. Low constituent model is inroduced and found to be consistent with hadron-hadron and…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. A. Abramovsky , A. V. Dmitriev , A. A Schneider
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