Flavored model building [Elektronische Ressource] / Claudia Hagedorn

Sujets

• Physik

Informations

• Publié par: technische_universitat_munchen
• Publié le: 01 janvier 2008
• Nombre de lectures: 8
• Langue: English

Extrait

Flavored Model Building
Claudia Hagedorn
Max-Planck-Institut fur¨ Kernphysik
Saupfercheckweg 1
D-69117 Heidelberg
E-Mail: [e-mail] Universit¨at Munc¨ hen
Physik Department
Institut fur¨ Theoretische Physik T30d
Flavored Model Building
Dipl.-Phys. Univ. Claudia Hagedorn
Vollst¨andiger Abdruck der von der Fakult¨at fur¨ Physik der Technischen Universit¨at Mun¨ chen zur
Erlangung des akademischen Grades eines
Doktors der Naturwissenschaften (Dr. rer. nat.)
genehmigten Dissertation.
Vorsitzender: Univ.-Prof. Dr. Lothar Oberauer
Pruf¨ er der Dissertation: 1. Prof. Dr. Manfred Lindner,
Ruprecht-Karls-Universit¨at Heidelberg
2. Univ.-Prof. Dr. Andrzej J. Buras
Die Dissertation wurde am 20.12.2007 bei der Technischen Universit¨at Mun¨ chen eingereicht und
durch die Fakult¨at fu¨r Physik am 15.01.2008 angenommen.Flavored Model Building
Abstract
In this thesis we discuss possibilities to solve the family replication problem and to understand the
observed strong hierarchy among the fermion masses and the diverse mixing pattern of quarks and
leptons. We show that non-abelian discrete symmetries which act non-trivially in generation space
can serve as profound explanation. We present three low energy models with the permutation
0symmetry S , the dihedral group D and the double-valued group T as flavor symmetry. The4 5
0T model turns out to be very predictive, since it explains tri-bimaximal mixing in the leptonq
mdsector and, moreover, leads to two non-trivial relations in the quark sector, = |V | andusmsq
m V 0d td= . The main message of the T model is the observation that the diverse pattern in