Hidden Sector Baryogenesis

TL;DR

This paper proposes a new baryogenesis mechanism involving hidden sector anomalies, naturally occurring in string-inspired models, which addresses theoretical challenges and predicts potential LHC signals.

Contribution

It introduces a novel baryogenesis mechanism driven by hidden sector anomalies and demonstrates its natural occurrence in intersecting-brane Standard Model constructions.

Findings

Mechanism successfully generates baryon asymmetry

Addresses theoretical difficulties in baryogenesis models

Predicts potential signals at the LHC

Abstract

We introduce a novel mechanism for baryogenesis, in which mixed anomalies between the hidden sector and $U(1)_{baryon}$ drive the baryon asymmetry. We demonstrate that this mechanism occurs quite naturally in intersecting-brane constructions of the Standard Model, and show that it solves some of the theoretical difficulties faced in matching baryogenesis to experimental bounds. We illustrate with a specific example model. We also discuss the possible signals at the LHC.