Conveners
Dark Matter experiments
- Luca Vecchi
I combine the non-relativistic effective theory of dark matter (DM) - electron interactions with linear response theory to obtain a formalism that fully accounts for screening and collective excitations in DM-induced electronic transition rate calculations for general DM-electron interactions. In the same way that the response of a dielectric material to an external electric field in...
Axion-like particles (ALPs) can be copiously produced in core-collapse supernovae (SNe) due to their coupling to SN matter. If they are weakly coupled, ALPs leave the star unimpeded after being produced. This regime has already been tightly constrained by cooling bounds. In this talk, I will focus on the trapping regime, where the SN environment becomes optically thick for ALPs and, therefore,...
Within the framework of linear response theory combined with effective description of interactions of fermion dark matter (DM) with electrons, it is possible to derive a material-independent theoretical upper limit on the rate of DM-induced electronic excitations in direct-detection experiments. In my talk, I will describe how this limit can be obtained, and compare it to the interaction rate...
Neutrinoless double beta decay (0νββ) is a hypothetical process that, if observed, would establish that neutrinos are Majorana particles. The LEGEND (Large Enriched Germanium Experiment for Neutrinoless ββ decay) Experiment is designed to search for the 0νββ decay 76Ge → 76Se + 2e-, with high-purity germanium (HPGe) detectors enriched in 76Ge. The experimental...
Blazars are a subclass of active galactic nuclei (AGN), the brightest continuously emitting sources in the Universe, powered by accreting supermassive black holes (SMBH). Their defining characteristic is the presence of powerful, back-to-back relativistic jets of protons and electrons, with one jet closely aligned in the direction of Earth. This offers a unique opportunity to probe physics...
