The IceCube Neutrino Observatory, a cubic-kilometer in-ice detector at the South Pole, offers a unique window into the smallest and largest scales of our universe. Over the past several years, IceCube has detected the first high-energy neutrinos of astrophysical origin, measured atmospheric neutrino oscillations, and performed searches of neutrino sources throughout the sky. As more data is collected, better detector modeling and systematic uncertainties becomes ever more important for neutrino astronomy and neutrino property measurements in IceCube.
Nuclear/Particle Physics Seminar
The main scientific goals of charm physics include discovering CP violation in the up sector and to probe for new physics. We discuss the complementary strategies that are needed to achieve this. Furthermore, triggered by recent LHCb results and prospects for Belle II we discuss U-spin sum rules for CP asymmetries of charmed baryon decays.
It has been proposed that neutrons may have an invisible decay mode into dark matter, due to mass mixing between the DM and the neutron, motivated by discrepancies between the neutron lifetime as measured by decay-in-flight versus bottle experiments. This scenario is highly constrained by neutron stars and dark matter phenomenology. I will describe a model with a subdominant component of elementary dark matter and dark photons, that can be compatible with all the constraints.