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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.

High Energy Physics - Phenomenology · Physics 2010-11-30 Kazunori Itakura

Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy $\sqrt{s}=319$ GeV are measured. The data are collected with the H1 detector at HERA corresponding to an integrated…

High Energy Physics - Experiment · Physics 2020-11-04 H1 collaboration

Neutral and charged current deep inelastic scattering cross sections and structure functions are presented. The review also discusses improvements to the parton density measurements using jet cross section data and recent high $Q^{2}$…

High Energy Physics - Experiment · Physics 2019-08-14 Syed Umer Noor

The Bialas-Bzdak model of elastic proton-proton scattering is generalized to the case when the real part of the parton-parton level forward scattering amplitude is non-vanishing. Such a generalization enables the model to describe well the…

High Energy Physics - Phenomenology · Physics 2014-01-14 T. Csörgő , F. Nemes

Neutral and charged current deep inelastic ep scattering with longitudinally polarised lepton beams has been studied with the H1 and ZEUS detectors at HERA. The differential cross sections were measured in the range of four-momentum…

High Energy Physics - Experiment · Physics 2013-05-22 Aleksander Filip Zarnecki

A measurement is presented of single- and double-differential dijet cross sections in diffractive deep-inelastic $ep$ scattering at HERA using data collected by the H1 experiment corresponding to an integrated luminosity of 290 pb^{-1}. The…

High Energy Physics - Experiment · Physics 2014-12-04 H1 Collaboration

We compare data on the proton structure function from SLAC experiments in the range of x between 0.7 and 0.97 in and near the resonance region with previous empirical fits to Deep Inelastic Scattering and with calculations from parton…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stephen Rock , Peter Bosted

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…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. Marquet , R. Peschanski , G. Soyez

The first measurement of diffractive scattering of quasi-real photons with large momentum transfer gamma p -> gamma Y, where Y is the proton dissociative system, is made using the H1 detector at HERA. The measurement is performed for…

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

Deep-inelastic positron-proton scattering events at low photon virtuality Q^2 with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional…

High Energy Physics - Experiment · Physics 2015-06-03 H1 Collaboration

A measurement is presented of the inclusive neutral current e\pm p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with proton beam energies Ep of 920, 575, and 460 GeV. The kinematic…

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

A measurement is presented of elastic Deeply Virtual Compton Scattering e^+ + p -> e^+ + photon + p at HERA using data taken with the H1 detector. The cross section is measured as a function of the photon virtuality, Q^2, and the invariant…

High Energy Physics - Experiment · Physics 2010-05-28 H1 Collaboration , C. Adloff

Virtual Compton Scattering (VCS) on the proton has been studied at Jefferson Lab using the exclusive photon electroproduction reaction (e p --> e p gamma). This paper gives a detailed account of the analysis which has led to the…

Nuclear Experiment · Physics 2013-05-30 H. Fonvieille , G. Laveissiere , N. Degrande , S. Jaminion , C. Jutier , L. Todor , R. Di Salvo , L. Van Hoorebeke , L. C. Alexa , B. D. Anderson , K. A. Aniol , K. Arundell , G. Audit , L. Auerbach , F. T. Baker , M. Baylac , J. Berthot , P. Y. Bertin , W. Bertozzi , L. Bimbot , W. U. Boeglin , E. J. Brash , V. Breton , H. Breuer , E. Burtin , J. R. Calarco , L. S. Cardman , C. Cavata , C. -C. Chang , J. -P. Chen , E. Chudakov , E. Cisbani , D. S. Dale , C. W. deJager , R. De Leo , A. Deur , N. d'Hose , G. E. Dodge , J. J. Domingo , L. Elouadrhiri , M. B. Epstein , L. A. Ewell , J. M. Finn , K. G. Fissum , G. Fournier , B. Frois , S. Frullani , C. Furget , H. Gao , J. Gao , F. Garibaldi , A. Gasparian , S. Gilad , R. Gilman , A. Glamazdin , C. Glashausser , J. Gomez , V. Gorbenko , P. Grenier , P. A. M. Guichon , J. O. Hansen , R. Holmes , M. Holtrop , C. Howell , G. M. Huber , C. E. Hyde , S. Incerti , M. Iodice , J. Jardillier , M. K. Jones , W. Kahl , S. Kato , A. T. Katramatou , J. J. Kelly , S. Kerhoas , A. Ketikyan , M. Khayat , K. Kino , S. Kox , L. H. Kramer , K. S. Kumar , G. Kumbartzki , M. Kuss , A. Leone , J. J. LeRose , M. Liang , R. A. Lindgren , N. Liyanage , G. J. Lolos , R. W. Lourie , R. Madey , K. Maeda , S. Malov , D. M. Manley , C. Marchand , D. Marchand , D. J. Margaziotis , P. Markowitz , J. Marroncle , J. Martino , K. McCormick , J. McIntyre , S. Mehrabyan , F. Merchez , Z. E. Meziani , R. Michaels , G. W. Miller , J. Y. Mougey , S. K. Nanda , D. Neyret , E. A. J. M. Offermann , Z. Papandreou , B. Pasquini , C. F. Perdrisat , R. Perrino , G. G. Petratos , S. Platchkov , R. Pomatsalyuk , D. L. Prout , V. A. Punjabi , T. Pussieux , G. Quemener , R. D. Ransome , O. Ravel , J. S. Real , F. Renard , Y. Roblin , D. Rowntree , G. Rutledge , P. M. Rutt , A. Saha , T. Saito , A. J. Sarty , A. Serdarevic , T. Smith , G. Smirnov , K. Soldi , P. Sorokin , P. A. Souder , R. Suleiman , J. A. Templon , T. Terasawa , R. Tieulent , E. Tomasi-Gustaffson , H. Tsubota , H. Ueno , P. E. Ulmer , G. M. Urciuoli , M. Vanderhaeghen , R. L. J. Van der Meer , R. Van De Vyver , P. Vernin , B. Vlahovic , H. Voskanyan , E. Voutier , J. W. Watson , L. B. Weinstein , K. Wijesooriya , R. Wilson , B. B. Wojtsekhowski , D. G. Zainea , W. -M. Zhang , J. Zhao , Z. -L. Zhou

Measurements of proton structure functions made in neutral and charged current interactions at HERA are discussed, covering four-momentum transfers Q^2 from about 0.5 GeV^2 to 30000 GeV^2. The results include the rise of the structure…

High Energy Physics - Experiment · Physics 2017-08-23 Joerg Gayler

The production of jets is studied in deep-inelastic ep scattering at large negative four momentum transfer squared 150<Q^2<15000 GeV^2 using HERA data taken in 1999-2007, corresponding to an integrated luminosity of 395 pb^-1. Inclusive…

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

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

Elastic and inelastic cross section of proton-proton and electron-proton scattering are discussed. Special attention is given to elastic scattering and to the striking difference between the data of these two kinds of experiments. It is…

General Physics · Physics 2008-10-20 E. Comay

Evidence for a positive longitudinal double-spin asymmetry <A_1^rho> = 0.24 +-0.11 (stat) +-0.02 (syst) in the cross section for exclusive diffractive rho^0(770) vector meson production in polarised lepton-proton scattering was observed by…

High Energy Physics - Experiment · Physics 2009-04-15 HERMES Collaboration , A. Airapetian

A characteristic feature of small-x lepton-proton data from HERA is geometric scaling -- the fact that over a wide range of x and Q^2 all data can be described by a single variable $Q^2/Q_{sat}^2(x)$, with all x-dependence encoded in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Nestor Armesto , Carlos A. Salgado , Urs Achim Wiedemann

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