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Differential dijet cross sections in diffractive deep-inelastic scattering are measured with the H1 detector at HERA using an integrated luminosity of 51.5 pb-1. The selected events are of the type ep --> eXY, where the system X contains at…

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

The production of photons accompanied by jets in large-Q2 deep inelastic ep scattering is calculated in next-to-leading order. We describe how to consistently include contributions from quark-to-photon fragmentation and give numerical…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Gehrmann-De Ridder , G. Kramer , H. Spiesberger

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

Next-to-leading order QCD predictions for 1-jet and 2-jet cross sections in polarized deep inelastic scattering at HERA energies are presented. Whereas the QCD corrections to the total polarized cross section are very large, only moderate…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Mirkes , S. Willfahrt

We review next-to-leading order calculations of one- and two-jet production in ep collisions at HERA for photon virtualities in the range 1<Q^2<100 GeV^2. Soft and collinear singularities are extracted using the phase space slicing method.…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Kramer , B. Pötter

Forward jet cross sections have been measured in neutral current deep inelastic scattering at low Bjorken-x with the ZEUS detector at HERA using an integrated luminosity of ${81.8 \rm pb}^{-1}$. Measurements are presented for inclusive…

High Energy Physics - Experiment · Physics 2019-08-13 S. Chekanov

Various jet observables in photoproduction are studied and compared to data from HERA. The feasibility of using a dijet sample for constraining the parton distributions in the photon is then studied. For the current data the experimental…

High Energy Physics - Phenomenology · Physics 2009-10-30 B. W. Harris , J. F. Owens

The QCD analysis of deep inelastic diffractive scattering is performed assuming the dominance of the "soft" pomeron exchange and simple, physically motivated parametrization of parton distributions in a pomeron. Results of the analysis are…

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

The production rates and substructure of jets have been studied in charged current deep inelastic e+p scattering for Q**2>200 GeV**2 with the ZEUS detector at HERA using an integrated luminosity of 110.5 pb**-1. Inclusive jet cross sections…

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

Results on hadronic final states in deeply inelastic scattering are reviewed. They comprise jet production and its interpretation in perturbative QCD, signatures to distinguish conventional QCD dynamics from possible new features of QCD at…

High Energy Physics - Experiment · Physics 2007-05-23 M. Kuhlen

Measurements of inclusive-jet and dijet cross-sections in high-Q2 deep-inelastic scattering are presented together with a short overview of extractions of the strong coupling parameter alpha_S from jets. The data samples used were collected…

High Energy Physics - Experiment · Physics 2007-07-03 Thomas Schoerner-Sadenius

Recent \alphas determinations from jet production at HERA are presented. Three different observables lead to consistent alpha values. The result is consistent with the world average and has an error of about 0.006. This is quite a…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Carli

The production of jets in charged current deep inelastic scattering (CC DIS) constitutes a class of observables that can be used to simultaneously test perturbative predictions for the strong and the electroweak sectors of the Standard…

High Energy Physics - Phenomenology · Physics 2018-11-21 J. Niehues , D. M. Walker

We present recent experimental data from the H1 and ZEUS Collaborations at HERA for diffractive dijet production in deep-inelastic scattering (DIS) and photoproduction and compare them with next-to-leading order (NLO) QCD predictions using…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Bruni , M. Klasen , G. Kramer , S. Schatzel

The production of a hard and isolated photon accompanied by one or two jets in large-Q2 deep inelastic ep scattering is calculated at next-to-leading order. We include consistently contributions from quark-to-photon fragmentation and study…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Gehrmann-De Ridder , G. Kramer , H. Spiesberger

In the past years significant progress has been made toward achieving a quantitative understanding of jets and their substructure in high-energy proton-proton collisions from first principles in QCD. Precise measurements have become…

High Energy Physics - Phenomenology · Physics 2018-12-19 Felix Ringer

Inclusive-jet and dijet differential cross sections have been measured in neutral current deep inelastic ep scattering for exchanged boson virtualities Q2 > 125 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1.…

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

The prospects of a direct extraction of the proton's gluon density in next-to-leading order via jet rates in deeply inelastic scattering are studied. The employed method is based on the Mellin transform, and can be applied, in principle, to…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Graudenz , M. Hampel , A. Vogt

We demonstrate that a future high-energy electron-proton collider like THERA could largely extend the current HERA program in jet photoproduction of testing QCD and determining the partonic structure of the proton and the photon. Depending…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Klasen

The shapes of jets with transverse energies, E_T(jet), up to 45 GeV produced in neutral- and charged-current deep inelastic e+p scattering (DIS) at Q**2 > 100 GeV**2 have been measured with the ZEUS detector at HERA. Jets are identified…

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