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Related papers: Quantitative Study of Geometrical Scaling in Deep …

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We analyze geometrical scaling in deep inelastic scattering using experimental data from HERA ep collider. Parallel analyses are performed for energy and Bjorken-x data binnings. In particular, value of parameter \lambda which governs…

High Energy Physics - Phenomenology · Physics 2013-02-05 Tomasz Stebel

The geometric scaling property observed in the HERA data at small x, that the deep inelastic scattering (DIS) total cross-section is a function of only the variable Q^2*x^\lambda, has been argued to be a manifestation of the saturation…

High Energy Physics - Phenomenology · Physics 2009-11-11 C. Marquet , L. Schoeffel

We observe that the saturation model of deep inelastic scattering, which successfully describes inclusive and diffractive data at small x, predicts a geometric scaling of the total gamma^* p cross section in the region of small Bjorken…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. M. Stasto , K. Golec-Biernat , J. Kwiecinski

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…

High Energy Physics - Phenomenology · Physics 2015-06-04 Michal Praszalowicz , Tomasz Stebel

We apply the method of ratios to search for geometrical scaling in the charm production in deep inelastic scattering. To this end we use recent combined data from H1 and ZEUS experiments. Two forms of geometrical scaling are tested:…

High Energy Physics - Phenomenology · Physics 2015-05-14 Tomasz Stebel

Using all available data on the deep-inelastic cross-sections at HERA at x<0.01, we look for geometric scaling of the form \sigma^{\gamma^*p}(\tau) where the scaling variable \tau behaves alternatively like \log(Q^2)-\lambda Y, as in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Gelis , R. Peschanski , G. Soyez , L. Schoeffel

We show that according to the present understanding of the energy evolution of the observables measured in deep-inelastic scattering, the photon-proton scattering amplitude has to exhibit geometric scaling at each impact parameter. We…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Munier , S. Wallon

Using the ``Quality Factor'' (QF) method, we analyse the scaling properties of deep-inelastic processes at HERA and fixed target experiments for x<0.01. We look for scaling formulae of the form sigma(tau), where tau(log Q^2, Y) is a scaling…

High Energy Physics - Phenomenology · Physics 2008-11-26 Guillaume Beuf , Robi Peschanski , Christophe Royon , David Salek

Using the "Quality Factor" (QF) method, we analyse the scaling properties of deep-inelastic processes at HERA and fixed target experiments for x<10^{-2}.

High Energy Physics - Phenomenology · Physics 2008-11-17 C. Royon , G. Beuf , R. Peschanski , D. Salek

Deep-inelastic ep scattering data taken with the H1 detector at HERA and corresponding to an integrated luminosity of 106 pb^{-1} are used to study the differential distributions of event shape variables. These include thrust, jet…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

We estimate the cross-section and asymmetry relevant for the production of forward jets in polarised deep inelastic scattering in the region of small values of $x$ which can be probed at possible polarised HERA measurements. The kinematical…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. Kwiecinski , B. Ziaja

This analysis provides new fits of the GBW model and the impact parameter-dependent saturation model (bSat or IP-Sat) to the leading neutron structure function HERA data in one pion exchange approximation. Both parametrizations of the…

High Energy Physics - Phenomenology · Physics 2023-02-15 Arjun Kumar

It is shown that the HERA experimental data on deep inelastic scattering at low values of the scaling variable x < 0.05 are in good agreement with predictions from Generalized Vector Dominance in the full kinematic range from Q2 = 0…

High Energy Physics - Phenomenology · Physics 2011-04-15 D. Schildknecht

Mean values and differential distributions of event-shape variables have been studied in neutral current deep inelastic scattering using an integrated {luminosity} of 82.2 pb$^{-1}$ collected with the ZEUS detector at HERA. The kinematic…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration

We successfully describe the HERA-data on diffractive deep inelastic scattering using a saturation model which has been applied in our earlier analysis of the inclusive $ep$-scattering data. No further parameters are needed. Saturation…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Golec-Biernat , M. Wusthoff

Analyzing recent ALICE data on inelastic pp scattering at the LHC energies we show that charged particle distributions exhibit geometrical scaling (GS). We show also that the inelastic cross-section is scaling as well and that in this case…

High Energy Physics - Phenomenology · Physics 2015-11-04 Michal Praszalowicz , Anna Francuz

The average charged track multiplicity and the normalised distribution of the scaled momentum, $\xp$, of charged final state hadrons are measured in deep-inelastic $\ep$ scattering at high $Q^2$ in the Breit frame of reference. The analysis…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

We show that geometrical scaling exhibited by the $p_{\rm T}$ spectra measured by the CMS collaboration at the LHC is substantially improved if the exponent $\lambda$ of the saturation scale depends on $p_{\rm T}$. This dependence is shown…

High Energy Physics - Phenomenology · Physics 2015-03-17 Michal Praszalowicz

Charged particle production in deep-inelastic ep scattering is measured with the H1 detector at HERA. The kinematic range of the analysis covers low photon virtualities, 5 < Q^2 < 100 GeV^2, and small values of Bjorken-x, 10^{-4} < x <…

High Energy Physics - Experiment · Physics 2013-02-07 H1 Collaboration

New results on diffractive deep-inelastic $e p$ scattering at HERA are presented using data taken in 1994 with the H1 detector. The cross section for diffractive deep-inelastic scattering is measured in terms of a diffractive structure…

High Energy Physics - Experiment · Physics 2007-05-23 S. Tapprogge
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