Speakers
Description
The IceCube Neutrino Observatory measures astrophysical and atmospheric neutrinos via the Cherenkov light emitted when these neutrinos interact in the ice and produce secondary charged particles. The Medium Energy Starting Events (MESE) data sample selects events with interaction vertices contained inside the detector volume and have energies from 1 TeV to more than 10 PeV. This event selection includes neutrinos of all flavors from the entire sky. Using this data sample, with 11 years of IceCube data, we measure the astrophysical spectrum to be most consistent with a broken power law. Further, we place the most precise constraints to date on the flavor composition of astrophysical neutrinos, with the help of flavor-dependent classification of events. We will present these results, and discuss future prospects for improved tau neutrino identification to facilitate increased precision of these measurements.