137 citations · 2.1k across the 138 of their papers we have counts for
4 papers · 1 filter
A Pati-Salam model from branes
G. K. Leontaris, J. Rizos
We explore the possibility of embedding the Pati-Salam model in the context of Type I brane models. We study a generic model with U(4)_C x U(2)_L x U(2)_R gauge symmetry and matter…
World volume Supermembrane Instantons in the light-cone frame
E. G. Floratos, G. K. Leontaris
In this review we present the octonionic duality for membranes. We start with a discussion on the relation of the Yang Mills theories and the supermembrane Hamiltonian in the light…
A Novel Mass Hierarchy and Discrete Excitation Spectra from Quantum-Fluctuating D-branes
G. K. Leontaris, N. E. Mavromatos
We elaborate further on a recently proposed scenario for generating a mass hierarchy through quantum fluctuations of a single D3 brane, which represents our world embedded in a bul…
Implications of Anomalous U(1) Symmetry in Unified Models: the Flipped SU(5) x U(1) Paradigm
John Ellis, G. K. Leontaris, J. Rizos
A generic feature of string-derived models is the appearance of an anomalous Abelian U(1)_A symmetry which, among other properties, constrains the Yukawa couplings and distinguishe…