Speaker
Jason Kumar
(Texas A&M University)
Description
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. We conclude by discussing some work currently in
progress, in which we exhibit a scenario for D-term inflation which naturally fits
into the structure of intersecting brane models. In this scenario, tachyonic
preheating at the end on inflation can robustly drive hidden sector
baryogenesis. We also briefly discuss implementations of this scenario in which
Majorana neutrino masses are generated at the end of inflation.
Author
Jason Kumar
(Texas A&M University)
Co-authors
Bhaskar Dutta
(Texas A&M University)
Louis Leblond
(Texas A&M University)
