Affleck-Dine baryogenesis in type IIB string models

作者：Allahverdi Rouzbeh^*; Cicoli Michele; Muia Francesco

来源：The Journal of High Energy Physics, 2016, 2016(6): 153.

DOI：10.1007/JHEP06(2016)153

• Strings and branes phenomenology
• Supersymmetry Phenomenology

We propose a possible string embedding of Affleck-Dine baryogenesis in type ILE sequestered models where the late-time decay of the lightest modulus reheats the universe to relatively low temperatures. We show that if inflation is driven by a blow-up Kahl&modulus, the Affleck-Dine field can become tachyonic during inflation if the Kahler metric for matter fields has an appropriate inflaton-dependent contribution. We find that the Affleck-Dine mechanism can generate the observed baryon asymmetry for natural values of the underlying parameters which lead also to successful inflation and low-energy gaugino masses in a split supersymmetry scenario. The reheating temperature from the lightest modulus decay is high enough to allow thermal Iliggsino-like dark matter.

• 出版日期2016-6-27