Search for dissertations about: "Low-x"

Showing result 1 - 5 of 10 swedish dissertations containing the word Low-x.

  1. 1. Azimuthal Correlations in Dijet Events from Deep Inelastic Positron-Proton Scattering at HERA

    University dissertation from Experimental High-Energy Physics

    Author : Magnus Hansson; Lund University.; Lunds universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Elementary particle physics; Jets; Azimuthal Correlations; Dijets; Parton Dynamics; Low-x; H1; HERA; quantum field theory; Elementarpartikelfysik; kvantfältteori; Fysicumarkivet A:2007:Hansson;

    Abstract : Correlations in the azimuthal angle between dijets produced in deep inelastic $e^{+}p$ scattering events, collected by the H1 experiment during 1999-2000, have been investigated. Cross sections are presented as a function of the azimuthal separation between the two jets in the hadronic center of mass frame, $Deltaphi^{*}$, in different regions of the photon virtuality $Q^{2}$ and in different regions of the Bjorken scaling variable $x_{Bj}$. READ MORE

  2. 2. Forward Jet Production in ep-collisions at HERA

    University dissertation from Theoretical High Energy Physics

    Author : Albert Knutsson; Lund University.; Lunds universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Forward Jets; Parton dynamics; Jets; Small-x; Low-x; Elementary particle physics; QCD; quantum field theory; Elementarpartikelfysik; kvantfältteori; Fysicumarkivet A:2007:Knutsson;

    Abstract : The production of forward jets has been measured in deep inelastic $ep$ collisions at HERA. The results are presented in terms of single differential cross sections as a function of the Bjorken scaling variable ($x_{Bj}$) and as triple differential cross sections $d^3 sigma / dx_{Bj}dQ^2dp_{t,jet}^2$, where $Q^2$ is the four momentum transfer squared and $p_{t,jet}^2$ is the squared transverse momentum of the forward jet. READ MORE

  3. 3. Multiple Parton Interactions in Deep Inelastic ep-scattering at HERA

    University dissertation from Theoretical High Energy Physics

    Author : Sakar Osman; Lund University.; Lunds universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Jet Calibration; H1; Jets; Mini-jets; MPI; Low-x; Multiple; Dijets; Parton Dynamics; HERA; Fysicumarkivet A:2008:Osman;

    Abstract : The production of jets with low transverse momenta (mini-jets) in deep inelastic electron-proton scattering is studied. The analyses uses data taken with the H1 detector at HERA during the years 1999 to 2000. READ MORE

  4. 4. A Dipole Model for High Energy QCD

    University dissertation from Department of Astronomy and Theoretical Physics, Lund University

    Author : Christoffer Flensburg; Lund University.; Lunds universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2011:Flensburg;

    Abstract : This thesis considers a model of high energy particle collisions. The model is based on the so called BFKL formalism which is valid only at low x, that is collisions at very high energies, such as at the LHC. The intial state of the incoming particles are simulated by colour dipoles in transverse space evolved through rapidity. READ MORE

  5. 5. The Strong Interaction in e+ e- Annihilation and Deep Inelastic Scattering

    University dissertation from Department of Theoretical Physics, Lund University

    Author : Jim Samuelsson; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hadronization Discrete QCD; The Linked Dipole Chain Model; Elementary particle physics; quantum field theory; kvantfältteori; Elementarpartikelfysik; DIS; Gluons; Quarks; Strong Interaction; QCD; Fysicumarkivet A:1996:Samuelsson;

    Abstract : Various aspects of the strong interaction are considered. Correlation effects in the hadronization process in a string model are studied. A discrete approximation scheme to the perturbative QCD cascade in e+ e- annihilation is formulated. The model, Discrete QCD, predicts a rather low phase space density of "effectlve gluons". READ MORE