Some Aspects of String Cosmology and the LHC

TL;DR

This paper explores unconventional aspects of string cosmology, focusing on how time-dependent dilaton fields and CPT-violation in brane models could impact supersymmetric dark matter searches and baryon asymmetry at the LHC.

Contribution

It introduces the role of time-dependent dilatons and CPT-violation in string cosmology, offering new perspectives on supersymmetric models and early universe phenomena.

Findings

Time-dependent dilatons relax constraints on supersymmetric dark matter models.

CPT-violating brane models may influence baryon asymmetry.

Potential implications for LHC dark matter searches.

Abstract

I discuss some (unconventional) aspects of String Cosmology of relevance to supersymmetric dark matter searches at the Large Hadron Collider (LHC) at CERN. In particular, I analyse the role of time-dependent dilaton fields in relaxing some of the stringent constraints that characterise minimal supersymmetric models in standard cosmology. I also study briefly CPT-violating aspects of brane Universe models with space-time brane defects at early epochs and their potential relevance to the observed Baryon Asymmetry.