Your browser does not support JavaScript!

Home    Orientifolds, anomalies and the standard model  

Results - Details

Add to Basket
[Add to Basket]
Identifier uch.physics.phd//2005anastasopoulos
Title Orientifolds, anomalies and the standard model
Alternative Title Θεωρίες ανοικτών χορδών, ανωμαλίες και το καθιερωμένο πρότυπο
Author Αναστασόπουλος, Πασχάλης
Thesis advisor Κυρίτσης, Ηλίας
Abstract In this thesis, we study aspects of D-brane realizations of the Standard Model. Specifically, we study orientifold models with rotation and translation elements that break supersymmetry, provide the general consistency conditions and derive the massless spectrum for these type of orientifolds. These models contain in general anomalous U(1) gauge fields. The Green-Schwarz mechanism cancels the anomaly and provides a mass term for the anomalous gauge fields. We calculate the bare mass for supersymmetric and non-supersymmetric vacua and we show that higher dimensional anomalies can affect the masses of the anomalous U(1)s. Phenomenological aspects are also discussed. We evaluate the contribution of the extra U(1) fields to the anomalous moments and it is shown that this imposes constraints on the magnitude of the string scale.
Language English
Issue date 2005-09-01
Date available 2005-09-22
Collection   School/Department--School of Sciences and Engineering--Department of Physics--Doctoral theses
  Type of Work--Doctoral theses
Views 707

Digital Documents
No preview available

Download document
View document
Views : 46