Theoretische Elementarteilchenphysik

Prof. Alejandro Ibarra


The Standard Model of Particle Physics provides an excellent description of nature at distances larger than E-16 cm, or equivalently energies smaller than 100 GeV. However, there are reasons to believe that the Standard Model is incomplete and needs to be extended. For instance, the Standard Model does not provide any explanation to the observed fermion masses and mixing angles or to the large hierarchy between the electroweak scale and the Planck scale. It does not provide either any explanation for some observed cosmological parameters, such as the baryon asymmetry of the Universe, the relic density of dark matter or the amount of dark energy. Our research group considers extensions of the Standard Model that might account for these observations and we study their consequences for present and future experiments.


James-Franck-Str. 1/I
85748 Garching b. München

Mitarbeiterinnen und Mitarbeiter der Arbeitsgruppe

Professorinnen und Professoren

Mitarbeiterinnen und Mitarbeiter

Lehrangebot der Arbeitsgruppe

Lehrveranstaltungen mit Beteiligung der Arbeitsgruppe

Ausgeschriebene Angebote für Abschlussarbeiten an der Arbeitsgruppe

Baryogenesis through leptogenesis

Our Universe contains much more matter than antimatter. A popular explanation for the origin of the cosmic matter-antimatter asymmetry consists in assuming that at very early times there existed a tiny excess of baryons over antibaryons. Most of the baryons and antibaryons in the primeval plasma annihilated with each other. However, a small fraction of the baryons survived the annihilations, thus leading to the baryon population we observe today. In this project, the student will learn the current evidence for a matter-antimatter asymmetry in our Universe, will formulate the Boltzmann equations for the evolution of the baryon asymmetry as a function of the temperature, and will learn the basics of the generation of the baryon asymmetry through the decay of heavy right-handed neutrinos through the mechanism of leptogenesis.

geeignet als
  • Bachelorarbeit Physik
Themensteller(in): Alejandro Ibarra

Abgeschlossene und laufende Abschlussarbeiten an der Arbeitsgruppe

Gravitational Waves from coalescing, compact Binary Systems
Abschlussarbeit im Masterstudiengang Physik (Kern-, Teilchen- und Astrophysik)
Themensteller(in): Alejandro Ibarra

Kern-, Teilchen-, Astrophysik

Ziel der Forschung ist das Verständnis unserer Welt auf subatomarem Niveau, von den Atomkernen im Zentrum der Atome bis hin zu den elementarsten Bausteinen unserer Welt.