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We show that the colour glass condensate dipole model of Iancu, Itakura and Munier, improved to include the impact parameter dependence, gives a good fit to the total gamma* p cross section measured at HERA if the anomalous dimension at the…

高能物理 - 唯象学 · 物理学 2008-11-26 G. Watt , H. Kowalski

A very wide body of HERA diffractive electroproduction data is confronted with the predictions of the colour dipole model. In doing so we focus upon three different parameterisations of the dipole scattering cross-section, whose parameters…

高能物理 - 唯象学 · 物理学 2008-11-26 Graham Shaw

We use data on the deep inelastic structure function F_2 in order to constrain the cross-section for scattering a colour dipole off a proton. The data seem to prefer parameterisations which include saturation effects. That is they indicate…

高能物理 - 唯象学 · 物理学 2008-11-26 J. R. Forshaw , G. Shaw

We confront a very wide body of HERA diffractive electroproduction data with the predictions of the colour dipole model. We focus upon three different parameterisations of the dipole scattering cross-section and find good agreement for all…

高能物理 - 唯象学 · 物理学 2009-11-11 J. R. Forshaw , R. Sandapen , G. Shaw

The Impact-Parameter dependent Color Glass Condensate (b-CGC) dipole model is based on the Balitsky-Kovchegov non-linear evolution equation and improves the Iancu-Itakura-Munier dipole model by incorporating the impact-parameter dependence…

高能物理 - 唯象学 · 物理学 2013-10-30 Amir H. Rezaeian , Ivan Schmidt

We employ a parameterisation of the proton dipole cross section previously extracted from electroproduction and photoproduction data to predict the diffractive structure function F2D(3)(Q^2, beta, xpom). Comparison with HERA H1 data yields…

高能物理 - 唯象学 · 物理学 2008-11-26 J. R. Forshaw , G. R. Kerley , G. Shaw

We compare the predictions of two distinct dipole models for inclusive and exclusive diffractive processes. While only one of these dipole models contains perturbative saturation dynamics, we show that the predictions of both models are…

高能物理 - 唯象学 · 物理学 2008-11-26 J. R. Forshaw , R. Sandapen , G. Shaw

The proton structure function F_2(x,Q^2) for x < 0.01 and 0.045< Q^2 < 45 GeV^2, measured in the deep inelastic scattering at HERA, can be well described within the framework of the Color Glass Condensate.

高能物理 - 唯象学 · 物理学 2010-11-30 Kazunori Itakura

We show that the HERA data for the inclusive structure function F_2(x,Q^2) for x < 0.01 and 0.045 < Q^2 < 45 GeV^2 can be well described within the color dipole picture, with a simple analytic expression for the dipole-proton scattering…

高能物理 - 唯象学 · 物理学 2008-11-26 E. Iancu , K. Itakura , S. Munier

Recent measurements of the diffractive cross section in deep-inelastic scattering at HERA are presented. The data are used to investigate the factorisation properties of diffractive DIS and to examine its quantum chromodynamic structure.…

高能物理 - 实验 · 物理学 2007-05-23 Paul Newman

The Impact-Parameter dependent Color Glass Condensate (b-CGC) and Saturation (IP-Sat) dipole models incorporate key features of small-x physics properties and match smoothly to the perturbative QCD regime at large $Q^2$ for a given $x$.…

高能物理 - 唯象学 · 物理学 2014-07-24 Amir H. Rezaeian

We discuss our model for soft colour interactions and present results on the diffractive structure function $F_2^D(\beta,x_\pom,Q^2)$ and inclusive transverse energy flows, which agree with available HERA data.

高能物理 - 唯象学 · 物理学 2008-11-26 A. Edin , G. Ingelman , J. Rathsman

We analyse the newest diffractive deep inelastic scattering data from the DESY collider HERA with the help of dipole models. We find good agreement with the data on the diffractive structure functions provided the diffractive open charm…

高能物理 - 唯象学 · 物理学 2014-11-18 K. Golec-Biernat , A. Luszczak

It is demonstrated that the global properties of the rapidity gap events at HERA can be understood based on electron-gluon scattering and a non-perturbative mechanism of colour neutralization. Using the measured inclusive structure function…

高能物理 - 唯象学 · 物理学 2007-05-23 W. Buchmuller , A. Hebecker

In this paper we confront the CGC/saturation approach of Ref.~\cite{CLMS} with the experimental combined HERA data and obtain its parameters. The model includes two features that are in accordance with our theoretical knowledge of deep…

高能物理 - 唯象学 · 物理学 2024-12-12 Michael Roa , José Garrido , Miguel Guevara

One of the frontiers of QCD which are intensely investigated in high energy experiments is the high energy (small $x$) regime, where we expect to observe the non-linear behavior of the theory. In this regime, the growth of the parton…

高能物理 - 唯象学 · 物理学 2008-11-26 V. P. Goncalves , M. S. Kugeratski , M. V. T. Machado , F. S. Navarra

The objectives of my talk are to provide a very brief introduction to diffractive photoprocesses in general and the colour dipole model in particular; and to comment on possible gluon saturation effects at HERA and beyond.

高能物理 - 唯象学 · 物理学 2009-10-31 G. Shaw

I review the physical and mathematical foundations for the theoretical description of the hadron wavefunction at small $x$ as a Colour Glass Condensate. In this context, I discuss the phenomenon of gluon saturation and some of its…

高能物理 - 唯象学 · 物理学 2011-01-25 Edmond Iancu

In this contribution we briefly review the current status of the dipole models and parton saturation on the basis of results presented at the HERA-LHC workshops in the years 2006-2008. The problem of foundations of the dipole models is…

高能物理 - 唯象学 · 物理学 2008-09-25 L. Motyka , K. Golec-Biernat , G. Watt

We use recently proposed method of ratios to assess the quality of geometrical scaling in deep inelastic scattering for different forms of the saturation scale. We consider original form of geometrical scaling (motivated by the…

高能物理 - 唯象学 · 物理学 2015-06-04 Michal Praszalowicz , Tomasz Stebel
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