Search for dissertations about: "three pion"

Showing result 1 - 5 of 11 swedish dissertations containing the words three pion.

  2. 1. Measurements of 2π0 and 3π0 Production in Proton-Proton Collisions at a Center of Mass Energy of 2.465 GeV

    Author : Inken Koch; Sven Kullander; Alfons Khoukaz; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiation sciences; two pion; three pion; production; WASA; Celsius; cross section; calorimeter; CsI crystals; kinematical distribution; Strålningsvetenskap; Radiation biology; Strålningsbiologi;

    Abstract : Neutral two- and three-pion productions in proton-proton collisions at a center of mass energy of 2.465 GeV have been studied using the WASA detector and an internal pellet target at the CELSIUS storage ring in Uppsala. READ MORE

  4. 2. Three Pion Interferometry in the NA44 Experiment

    Author : Janus Schmidt-Sörensen; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantum field theory; heavy-ion physics; bose-einstein; Elementary particle physics; interferometry; Elementarpartikelfysik; kvantfältteori; Fysicumarkivet A:1999:Schmidt-Sörensen;

    Abstract : This thesis presents a three-particle correlation analysis with pions originating from Sulphur-Lead and Lead-Lead collisions at 200 and 158 GeV/c per nucleon respectively, taken by the CERN heavy-ion experiment NA44. The genuine three-body correlation is suppressed in both colliding systems which indicates that the particle production source is partly coherent. READ MORE

  5. 3. Two-pion production in proton-proton collisions near threshold

    Author : Jan Johanson; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiation sciences; Meson production near threshold; Two-pion production; Strålningsvetenskap; Radiation biology; Strålningsbiologi; Nuclear Physics; kärnfysik;

    Abstract : Two-pion production reactions in proton-proton collisions have been studied using the PROMICE/WASA detector and an internal cluster gas-jet target at the CELSIUS storage ring in Uppsala. Three out of the four isospin-independent reaction channels have been measured at several energies in the intermediate and near threshold energy region. READ MORE

  6. 4. Pion and Kaon Dynamics at Higher Orders in Chiral Perturbation Theory

    Author : Pierre Dhonte; Teoretisk partikelfysik - Geonomgår omorganisation; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Matematisk och allmän teoretisk fysik; thermodynamics; statistical physics; gravitation; chiral perturbation theory; strong interactions; pseudo-scalar mesons; Mathematical and general theoretical physics; form factors; scattering; classical mechanics; relativity; quantum mechanics; klassisk mekanik; kvantmekanik; relativitet; statistisk fysik; termodynamik; Fysicumarkivet A:2004:Dhonte;

    Abstract : Higher orders calculations of processes involving the pion and kaon pseudo-scalar mesons are presented in the framework of three flavour Chiral Perturbation Theory. The purpose is two-fold. First determining the low energy constants of ChPT that are necessary for higher accuracy predictions. READ MORE

  7. 5. Mesonic fusion - pion and eta meson production in light ion nuclear fusion reactions

    Author : Irina Zartova; Per-Erik Tegnér; Thomas Nilsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; pionic fusion; halo nuclei; cross sections; light mesons; eta-meson; WASA detector; Nuclear physics; Kärnfysik; Nuclear Physics; kärnfysik;

    Abstract : The present thesis describes two experiments performed in the storage ring CELSIUS at The Svedberg Laboratory in Uppsala. In the first experiment the importance of three - nucleon clustering in the six - nucelon system was investigated. The total cross section for the production of the ground state and the 3. READ MORE