It has been 6 years since the first gravitational wave event GW150914. Here, I review some of the most recent and exciting gravitational wave results. I will discuss the status of the current gravitational wave detectors and their performance as a network. I will summarize the, gravitational wave detections of the past observing runs, as well as the perspectives of the future observing runs. I...
A kinetic mixing between the axion and the inflaton allows for a production of axion dark matter even if the inflationary Hubble scale is smaller than the zero-temperature axion mass. I will discuss the axion dynamics in this "inflaxion" framework, and present a cosmological scenario where the axion can drift away from its vacuum during the reheating epoch, giving rise to the observed dark...
I will review perspectives for indirect Dark Matter searches using different set of observables at small and medium scales and at low and high redshift.
I will also discuss neutrino constraints from cosmological data.
I will discuss the physics of the first order phase transitions in the early universe. The talk will be focused on the regime with ultra-relativistic bubble expansions. The new mechanisms for DM production and baryon asymmetry generation will be discussed
I will introduce a class of new mechanisms for low-scale baryogenesis and dark matter production that utilize the CP violation within Standard Model meson systems. Mesogenesis mechanisms operate at MeV scales and such, remarkably, are experimentally testable. I will first give an overview of B-Mesogenesis; in which baryogenesis proceeds through the oscillation and subsequent decay into a dark...
In this talk based on 1810.00880 and 2101.02706, I will present a new mechanism for Baryogenesis and Dark Matter production: B-Mesogenesis. Within the B-Mesogenesis paradigm, both the dark matter relic abundance and the baryon asymmetry of the Universe arise from the CP violating oscillations of B mesons and their subsequent decays in the early Universe. This mechanism would have distinctive...
In this talk I will describe dark sectors made of non-abelian gauge theories with fermions neutral under the Standard Model. This leads to accidentally stable Dark Matter candidates that can be populated minimally through gravitational interactions. In the pure glue scenario DM is the lightest glueball while adding light fermions the lightest pion and baryon are the DM candidates. Despite the...
The NANOGrav and Parkes pulsar timing array (PTA) collaborations have recently reported strong evidence for a new stochastic process affecting the pulsar timing residuals in their respective most recent data sets, raising the hope that they have thus caught the first glimpse of a stochastic gravitational-wave background at nanohertz frequencies. In this talk, I will review the properties of...
