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. Consequently, measurements of the amount of Dark Radiation put stringent constraints on models based on the LVS.
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)
