SUSY07

Session

Theoretical Models (String Theory and Formal Aspects of SUSY) 4

Models4

28 Jul 2007, 16:30

Physics Building (Karlsruhe University)

349. Confronting Finite Unified Theories with low-energy phenomenology

Prof. Myriam Mondragon (Instituto de Fisica, UNAM)

28/07/2007, 16:30

Theoretical Models (String Theory and Formal Aspects of SUSY)

Parallel Talk

Finite Unified Theories (FUTs) are N=1 supersymmetric Grand Unified Theories that can be made all-loop finite. The requirement of all-loop finiteness leads to a severe reduction of the free parameters of the theory and, in turn, to a vast number of predictions. Here SU(5) FUTs are investigated in the context of low-energy phenomenology observables. We present a detailed scanning of...

364. Bulk-brane supergravity

Dr Dmitry Belyaev (DESY)

28/07/2007, 16:50

Theoretical Models (String Theory and Formal Aspects of SUSY)

Parallel Talk

Randall-Sundrum and Horava-Witten scenarios require understanding of bulk-brane interactions in supergravity. Whereas globally supersymmetric models with branes can be easily and consistently constructed, there are still unresolved problems for the locally supersymmetric cases. I will attempt to clarify the problems and report on the progress in their resolution.

319. Energy Transfer and Kaluza-Klein Mode Decay between Throats

Mr Benedict Harling (Institute for Theoretical Physics, Heidelberg)

28/07/2007, 17:10

Theoretical Models (String Theory and Formal Aspects of SUSY)

Parallel Talk

Strongly warped regions, also known as throats, are a common feature of the type IIB string theory landscape. If one of the throats is heated during cosmological evolution, the energy is subsequently transferred to other throats or to massless fields in the unwarped bulk of the Calabi-Yau orientifold. This energy transfer proceeds either by Hawking radiation from the black hole horizon...

360. Radius stabilization in 5D SUGRA models on orbifold

Dr Yutaka Sakamura (Osaka University)

28/07/2007, 17:30

Theoretical Models (String Theory and Formal Aspects of SUSY)

Parallel Talk

We discuss the stabilization of the size of the extra dimension in the 5 dimensional supergravity models compactified on an S^1/Z_2 orbifold. We consider models with boundary superpotentials and analyze the potential for the radion field from the viewpoint of the 4D effective theory.