Sökning: "hadron collisions"

Visar resultat 1 - 5 av 63 avhandlingar innehållade orden hadron collisions.

  1. 1. The Charm of Excited Glue : Charmonium in e+e– and ppbar collisions

    Författare :Agnes Lundborg; Ulrich Wiedner; Helmuth Koch; Uppsala universitet; []
    Nyckelord :Physics; hadron; charmonium; PANDA; antiproton; annihilations; spin-parity exotics; gluonic excitations; BES; hybrid; glueball; resonances; radiative decays; electromagnetic transitions; Fysik;

    Sammanfattning : This thesis treats the mass range of charmonium states and excited gluonic fields in two experiments, BESII and PANDA, and outlines a phenomenological model that connects them.In BESII, e+e– form a charmonium initial state, which is utilised as a source for secondary particles. LÄS MER

  3. 2. From Strange to Charm : Meson production in electron-positron collisions

    Författare :Joachim Pettersson; Karin Schönning; Andrzej Kupsc; Simon Eidelman; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hadron physics; Hadronic decays; Light mesons; Charmonium; Meson production; BESIII; Fysik med inriktning mot kärnfysik; Physics with specialization in Nuclear Physics;

    Sammanfattning : Decays of pseudoscalar mesons into a lepton-antilepton pair are very rare within the Standard Model since they cannot proceed via a single photon process. The C-even neutral mesons can be produced in electron-positron collisions by a two-photon intermediate state. LÄS MER

  4. 3. Study of Ξ-Hadron Correlations in pp Collisions at √s = 13 TeV Using the ALICE Detector

    Författare :Jonatan Adolfsson; Fysiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LHC; ALICE; quark gluon plasma; small systems; pp collisions; strangeness enhancement; correlations;

    Sammanfattning : By colliding heavy nuclei at high energies, which is done at RHIC and the LHC, a strongly interacting Quark Gluon Plasma (QGP) is created. This manifests itself through several different signatures, which until recently was thought to uniquely probe the QGP. LÄS MER

  5. 4. Analyses of Electron-Proton and Hadron-Hadron Collisions Using the Linked Dipole Chain Model

    Författare :Gabriela Miu; Teoretisk partikelfysik - Geonomgår omorganisation; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hadronic interactions; Kärnfysik; Nuclear physics; QCD; DIS; Fysicumarkivet A:2002:Miu;

    Sammanfattning : In this thesis we perform phenomenological studies of Quantum Chromodynamics, as manifested in deeply inelastic electron-proton (DIS) and high-energy hadron-hadron interactions. Most of the results are obtained using the Linked Dipole Chain model (LDC). LÄS MER

  7. 5. Colour Reconnection and Weak Showers

    Författare :Jesper Roy Christiansen; Teoretisk partikelfysik - Geonomgår omorganisation; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Merging; Weak interactions; Parton Showers; Event generators; hadron collisions; Colour Reconnection; Fragmentation; Fysicumarkivet A:2015:Christiansen;

    Sammanfattning : This thesis consider the improvement of the simulation tools used to describe high energy particle collisions. These simulation programs are normally referred to as event generators. LÄS MER