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相关论文: Confronting impact-parameter dependent model in ne…

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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

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

{In this paper we propose a new impact-parameter dependent CGC/saturation model. We introduce two new features in the model that make it consistent with what we know theoretically about the deep inelastic scattering. They are: the use of…

高能物理 - 唯象学 · 物理学 2016-02-17 Carlos Contreras , Eugene Levin , Irina Potashnikova

This paper is the first attempt to build CGC/saturation model based on the next-to-leading order corrections to linear and non-linear evolution in QCD. We assume that the renormalization scale is the saturation momentum and found that the…

高能物理 - 唯象学 · 物理学 2016-12-28 Carlos Contreras , Eugene Levin , Rodrigo Meneses , Irina Potashnikova

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

The Impact-Parameter dependent Saturation Model (IP-Sat) is a simple dipole model that incorporates key features of the physics of gluon saturation and matches smoothly to the perturbative QCD dipole expression at large Q^2 for a given x.…

高能物理 - 唯象学 · 物理学 2013-02-04 Amir H. Rezaeian , Marat Siddikov , Merijn Van de Klundert , Raju Venugopalan

In the paper we discussed the evolution equations for diffractive production in the framework of CGC/saturation approach, and found the analytical solutions for several kinematic regions. The most impressive features of these solutions are,…

高能物理 - 唯象学 · 物理学 2018-07-04 Carlos Contreras , Eugene Levin , Rodrigo Meneses , Irina Potashnikova

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

The perturbative QCD predicts that the growth of the gluon density at small-$x$ (high energies) should saturate, forming a Color Glass Condensate (CGC), which is described in mean field approximation by the Balitsky-Kovchegov (BK) equation.…

高能物理 - 唯象学 · 物理学 2014-11-20 M. A. Betemps , V. P. Goncalves , J. T. de Santana Amaral

The forthcoming p+Pb run at the LHC will provide crucial in formation on the initial state effects of heavy ion collisions and on the gluon saturation phenomena. In turn, most of the saturation inspired phenomenology in heavy ion collisions…

高能物理 - 唯象学 · 物理学 2012-08-31 Paloma Quiroga-Arias , Javier L. Albacete , J. Guilherme Milhano , Juan Rojo

Building on the newly available solution of the Balitsky-Kovchegov (BK) equation with the full impact-parameter dependence, we extend the study of parton evolution from proton to nuclear targets. Since a key part of the scientific programme…

高能物理 - 唯象学 · 物理学 2026-05-11 J. Cepila , M. Matas , M. Vaculciak

The contribution of the different terms of the running-coupling Balistky-Kovchegov (rcBK) equation to the description of inclusive HERA data is discussed. Within this framework an alternative definition of the saturation scale is presented.…

高能物理 - 唯象学 · 物理学 2016-09-07 Jan Cepila , Jesús Guillermo Contreras

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

In this paper we compare the experimental HERA data with the next-to-leading order approach (NLO) of Ref.[C.~Contreras, E.~Levin, R.~Meneses and M.~Sanhueza,Eur. Phys. J. C 80 (2020) no.11, 1029). This approach includes the re-summed NLO…

高能物理 - 唯象学 · 物理学 2022-01-05 Carlos Contreras , Eugene Levin , Michael Sanhueza

Within the Color Glass Condensate effective field theory, we assess the importance of including a finite size for the target on observables sensitive to small-$x$ evolution. To this end, we study the Balitsky-Kovchegov (BK) equation with…

高能物理 - 唯象学 · 物理学 2025-04-03 Heikki Mäntysaari , Jani Penttala , Farid Salazar , Björn Schenke

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…

高能物理 - 唯象学 · 物理学 2008-11-26 G. Soyez

Following recent predictions that the geometric scaling properties of deep inelastic scattering data in inclusive gamma*-p collisions are expected also in exclusive diffractive processes, we investigate the diffractive production of vector…

高能物理 - 唯象学 · 物理学 2008-11-26 C. Marquet , R. Peschanski , G. Soyez

In this letter we demonstrate that a model which is based on the CGC/saturation approach, is able to describe soft interaction collisions for the wide range of $W=\sqrt{s} = 30 \,GeV \div\, 13 \,TeV$ including the new TOTEM data at 13 TeV.…

高能物理 - 唯象学 · 物理学 2018-11-14 E. Gotsman , E. Levin , I. Potashnikova

We perform the first dipole picture fit to HERA inclusive cross section data using the full next-to-leading order (NLO) impact factor combined with an improved Balitsky-Kovchegov evolution including the dominant effects beyond leading…

高能物理 - 唯象学 · 物理学 2020-11-04 G. Beuf , H. Hänninen , T. Lappi , H. Mäntysaari

We expect to observe parton saturation in a future electron - ion collider. In this letter we discuss this expectation in more detail considering two different models which are in good agreement with the existing experimental data on…

高能物理 - 唯象学 · 物理学 2009-01-14 E. R. Cazaroto , F. Carvalho , V. P. Gonçalves , F. S. Navarra
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