Sökning: "Tommy Ohlsson"
Visar resultat 1 - 5 av 18 avhandlingar innehållade orden Tommy Ohlsson.
1. Dynamics of quarks and leptons : theoretical Studies of Baryons and Neutrinos
Sammanfattning : The Standard Model of Elementary Particle Physics (SM) is the present theoryfor the elementary particles and their interactions and is a well-established theorywithin the physics community. The SM is a combination of Quantum Chromodynamics(QCD) and the Glashow{Weinberg{Salam (GWS) electroweak model. LÄS MER
2. Properties of baryons in the chiral quark model
Sammanfattning : In this thesis, several properties of baryons are studied using the chiral quark model. The chiral quark model is a theory which can be used to describe low energy phenomena of baryons. In Paper 1, the chiral quark model is studied using wave functions with configuration mixing. LÄS MER
3. Models in Neutrino Physics : Numerical and Statistical Studies
Sammanfattning : The standard model of particle physics can excellently describe the vast majorityof data of particle physics experiments. However, in its simplest form, it cannot account for the fact that the neutrinos are massive particles and lepton flavorsmixed, as required by the observation of neutrino oscillations. LÄS MER
4. Predictions of Effective Models in Neutrino Physics
Sammanfattning : Experiments on neutrino oscillations have confirmed that neutrinos have small, but non-zero masses, and that the interacting neutrino states do not have definite masses, but are mixtures of such states.The seesaw models make up a group of popular models describing the small neutrino masses and the corresponding mixing. LÄS MER
5. Matter and damping effects in neutrino mixing and oscillations
Sammanfattning : This thesis is devoted to the study of neutrino physics in general and the study of neutrino mixing and oscillations in particular. In the standard model of particle physics, neutrinos are massless, and as a result, they do not mix or oscillate. LÄS MER