Particle Seminar: Yuhsin Tsai (Notre Dame) “Cosmological Particle Production and Pairwise Spots on the CMB”

Seminar Organizer

Event Details

Abstract: I will describe a scenario in which heavy particles are produced during inflation via their couplings to the inflaton. Following their production, these heavy particles propagate classically and can give rise to localized spots on the Cosmic Microwave Background. Momentum conservation during particle production dictates that these localized spots come in pairs. I will discuss the properties of such pairs of CMB spots and the prospect of their detection from the thermal fluctuation background.