Sökning: "chiral anomaly"

Hittade 3 uppsatser innehållade orden chiral anomaly.

  1. 1. Dynamics of the η' meson at finite temperature

    Master-uppsats, Uppsala universitet/Kärnfysik

    Författare :Elisabetta Perotti; [2014]
    Nyckelord :effective field theory; chiral perturbation theory; resonance chiral theory; large Nc limit; chiral anomaly;

    Sammanfattning : At the present time it is unknown how the U(1)A anomaly of Quantum Chromodynamics behaves at high temperatures. We therefore want to look for thermal changes of the effects of the anomaly. LÄS MER

  3. 2. In-medium width of the η' meson

    Master-uppsats, Kärnfysik

    Författare :Carl Niblaeus; [2013]
    Nyckelord :Eta prime meson; width; finite temperature; lifetime; QCD; chiral perturbation theory; Eta prime meson; vidd; ändlig temperatur; livstid; QCD; kiral störningsteori;

    Sammanfattning : In this master’s thesis the width of the  meson is studied as a function of temperature. We consider a background medium consisting of a pion gas and assume a vanishing net baryon chemical potential. LÄS MER

  4. 3. The Anatomy of the Pion Loop Hadronic Light by Light Scattering Contribution to the Muon Magnetic Anomaly

    Master-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Mehran Zahiriabyaneh; [2012]
    Nyckelord :Hadronic Light by Light; Muon Magnetic Anomaly; Hidden Local Symmetry; Chiral Perturbation Theory; Vector Meson Dominance; Physics and Astronomy;

    Sammanfattning : This thesis investigates the Hadronic Light by Light (HLL) scattering contribution to the muon g − 2, which is one of the most important low energy hadronic effects and consists mainly of the quark loop, the pion pole and the charged pion and kaon loops. In this work the charged pion loop has been investigated more closely. LÄS MER