Description
Author and Speaker: Debasish Borah
Abstract: The visible part of the present Universe is composed of matter or baryons only with negligible trace of antimatter. As the Universe is expected to start out with as much antimatter as matter, the present observation has led to the longstanding puzzle of baryon asymmetry of Universe. Another intriguing puzzle is the presence of non-luminous or dark matter in the present Universe contributing more than five times the visible matter to the total energy budget. This talk will discuss the impact of forbidden decays of particles in the early Universe enabled by finite-temperature effects on simultaneous generation of dark matter and baryon asymmetry. It will also touch upon additional phenomenological implications like gravitational waves, primordial black holes, large neutrino asymmetry etc. depending upon the particular model implementation.
