23–26 Sept 2014
DESY Hamburg
Europe/Berlin timezone

Dark Radiation predictions from general Large Volume Scenarios

25 Sept 2014, 14:40
20m
Seminar room 1 (DESY Hamburg)

Seminar room 1

DESY Hamburg

Notkestrasse 85, 22607 Hamburg

Speaker

Dr Lukas Witkowski (Heidelberg University)

Description

The existence of Dark Radiation is a generic prediction of the Large Volume Scenario (LVS), a popular scheme of moduli stabilisation in type IIB string theory. In this talk I will quantify predictions for Dark Radiation for a wide range of LVS models. In particular, I will show that some of the most natural LVS settings with natural values of model parameters lead to Dark Radiation predictions just below the present observational bounds. Barring a discovery, rather modest improvements of present Dark Radiation limits can rule out many of these most simple and generic variants of the LVS.

Author

Dr Lukas Witkowski (Heidelberg University)

Presentation materials