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.

Primary author

Dr Lukas Witkowski (Heidelberg University)

Presentation materials