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Related papers: DIS structure functions from the saturation model

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The H1 and Zeus collaborations have measured the inclusive diffractive DIS cross section ep -> eXp and these measurements are in good agreement within a normalisation uncertainty. Diffractive parton density functions (DPDFs) have been…

High Energy Physics - Experiment · Physics 2008-10-16 Paul Laycock

We compute diffractive structure functions for both protons and nuclei in the framework of Color Glass Condensate models with impact parameter dependence. These models have previously been shown to provide good agreement with inclusive F_2…

High Energy Physics - Phenomenology · Physics 2009-01-14 H. Kowalski , T. Lappi , C. Marquet , R. Venugopalan

We study the dipole picture of high-energy virtual-photon-proton scattering. It is shown that different choices for the energy variable in the dipole cross section used in the literature are not related to each other by simple arguments…

High Energy Physics - Phenomenology · Physics 2011-03-28 Carlo Ewerz , Andreas von Manteuffel , Otto Nachtmann

We show that HERA data for the inclusive structure function F_2(x,Q^2) at small Bjorken-x and Q^2 can be reasonably well described by a color-dipole model with an AdS/CFT-inspired dipole-proton cross section. The model contains only three…

High Energy Physics - Phenomenology · Physics 2010-05-28 Yuri V. Kovchegov , Zhun Lu , Amir H. Rezaeian

In this paper we present a combined analysis of the H1 data on leading baryon and diffractive structure functions from DIS, which are handled as two components of the same semi-inclusive process. The available structure function data are…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Batista , R. J. M. Covolan , J. Montanha

We investigate structure functions in deep inelastic scattering processes (DIS) at Bj\"{o}rken limit and found that they are factorized into the longitudinal and transversal parts. We see that the longitudinal part can be linked to exact…

High Energy Physics - Phenomenology · Physics 2025-03-18 H. Babujian , M. Karowski , A. Sedrakyan

We use the dipole model to analyze the inclusive DIS cross section data, obtained from the HERA I+II measurements \cite{Abramowicz:2015mha}. We show that these combined data are very well described within the dipole model framework, which…

High Energy Physics - Phenomenology · Physics 2016-08-05 Agnieszka Luszczak

The H1 and Zeus collaborations have measured the inclusive diffractive DIS cross section ep -> eXp and these measurements are in good agreement within a normalisation uncertainty. Diffractive parton density functions (DPDFs) have been…

High Energy Physics - Experiment · Physics 2009-06-09 Paul Laycock

Results are given on the measurements of the hard diffractive interactions at HERA $ep$ collider. The structure of the diffractive exchange in terms of partons and the factorisation properties are discussed, in particular by comparing the…

High Energy Physics - Experiment · Physics 2017-08-23 L. Favart

Recent results on diffraction at HERA are presented, focusing on the measurement of the inclusive diffractive cross section and on the study of two and three jets in diffractive ep scattering.

High Energy Physics - Experiment · Physics 2007-05-23 Vincenzo Monaco , H1 Collaboration , ZEUS Collaboration

The measurement of the proton structure function at HERA is often seen as a hint for the observation of saturation in high-energy QCD e.g. through the observation of geometric scaling. Accordingly, the dipole picture provides a powerful…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Soyez

In the semiclassical approach, inclusive and diffractive quark and gluon distributions are expressed in terms of correlation functions of Wilson loops. Each Wilson loop integrates the colour field strength in the area between the…

High Energy Physics - Phenomenology · Physics 2010-03-25 W. Buchmuller , T. Gehrmann , A. Hebecker

We present a model based on the concept of saturation for small $Q^2$ and small $x$. With only three parameters we achieve a good description of all Deep Inelastic Scattering data below $x=0.01$. This includes a consistent treatment of…

High Energy Physics - Phenomenology · Physics 2010-05-12 K. Golec-Biernat , M. Wusthoff

The cross-sections of diffractive double hadron photo- or electroproduction with large $p_T$, on a nucleon or a nucleus, are calculated to NLO accuracy. A hybrid formalism mixing collinear factorization and high energy small-$x$…

High Energy Physics - Phenomenology · Physics 2023-04-05 Michael Fucilla , Andrey V. Grabovsky , Emilie Li , Lech Szymanowski , Samuel Wallon

We have studied the color dipole picture for the description of the deep inelastic process, mainly the structure functions which are driven directly by the gluon distribution. Estimates for those functions are obtained using the effective…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. B. Gay Ducati , M. V. T. Machado

A summary of the experimental and theoretical presentations in the Structure Function Working Group on the proton and photon unpolarized structure functions is given.

High Energy Physics - Phenomenology · Physics 2010-11-30 V. Chekelian , A. M. Cooper-Sarkar , R. Thorne

We review a consistent description of the fusion and saturation of partons in the Lorentz-contracted ultrarelativistic nuclei in terms of a nuclear attenuation of color dipole states of the photon and collective Weizs\"acker-Williams (WW)…

High Energy Physics - Phenomenology · Physics 2017-08-23 I. P. Ivanov , N. N. Nikolaev , W. Schäfer , B. G. Zakharov , V. R. Zoller

The energy dependence of the virtual photoabsorption cross section in deep inelastic scattering (DIS) at low $x = Q^2/W^2 < 0.1$ may be described in terms of the saturation scale that in our approach depends on the energy, $\Lambda^2_{sat}…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Schildknecht

The diffraction dissociation of virtual photons is considered in the framework of conventional Regge theory. It is shown that the recent HERA data on large rapidity gap events can be successfully described in terms of the Pomeron structure…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Capella , A. Kaidalov , C. Merino , J. Tran Thanh Van

We calculate the energy dependence of inclusive and diffractive neutrino-nucleus deep-inelastic scattering cross sections within the dipole picture, focusing on the ultra-high-energy regime. We predict an up to $\sim 10\%$ nuclear…

High Energy Physics - Phenomenology · Physics 2024-09-26 Anh Dung Le , Heikki Mäntysaari