Conveners
Dark Matter theory
- Francesco D'Eramo (University of Padua)
We are considering a minimal $U(1)_B$ extension of the Standard Model (SM)
by promoting the baryon number as a local gauge symmetry to accommodate a
stable dark matter (DM) candidate. The gauge theory of baryons induces non-
trivial triangle gauge anomalies, and we provide a simple anomaly-free solution
by adding three exotic fermions. A scalar S spontaneously breaks the...
If dark matter is blind to standard model gauge interactions, the dark sector might not be totally secluded but connect to the visible sector via the introduction of portal interactions. In this talk, I will discuss a novel scenario where an axion-like particle acts as mediator between the SM and a complex scalar singlet dark matter candidate. The identification of physical couplings...
We present a freeze-in production mechanism for fermionic dark matter mediated by a $Z^\prime$ gauge boson. Freeze-in is typically a production mechanism for FIMPs. However, if the temperature of the Standard Model (SM) thermal bath never exceeds the dark matter mass, we enter a regime of Boltzmann-suppressed production. This allows for stronger couplings in a freeze-in scenario, reaching...
We discuss the possibility of producing the observed baryon asymmetry of the Universe (BAU) and dark matter (DM) from evaporating primordial black holes (PBH) incorporating semi-classical regime and memory burden regime. In the simplest scenario of baryogenesis via vanilla leptogenesis with hierarchical right handed neutrino (RHN), it is possible to generate the observed BAU with PBH being...
In this talk, I will consider extensions of the Standard Model (SM) featuring vectorlike fermions charged under a new confining force, referred to as 'dark color.' These dark fermions condense to form a spectrum of dark hadrons, with the lightest accidentally stable dark baryon, with a mass of around 100 TeV, serving as a viable thermal dark matter candidate. I will, in particular, consider...
