Presentation materials
The often-considered dark matter (DM) candidates, e.g., WIMP and ALP, are in tension with observations, which motivates new proposals for DM. The recently proposed féeton dark matter, a B-L gauge boson with a small mass and feeble coupling to the standard sector, constitutes a well-motivated dark matter model consistent with cosmology, Seesaw mechanism, and leptogenesis. This model predicts...
Cosmic strings are line-like topological defects which can be formed in the early universe. In this talk, I first review basic concepts and general features of cosmic strings. Then I will explain how to evaluate interaction energies of two cosmic strings, and discuss our recent results. I also discuss phenomenological implications of our results such as the formation of the bound state of...
