Ponente
Descripción
The IceCube Collaboration employs two primary detection channels: tracks and cascades. Point source searches with tracks, with their good angular resolution, are particularly sensitive to sources in the northern sky, while searches with cascades offer enhanced energy resolution and are more effective in the southern sky. Historically, high-energy neutrino point-source searches using IceCube data have relied on only one of these channels at a time. This analysis marks a significant advancement, being the first to combine both IceCube’s tracks and cascades datasets by constructing a unified maximum-likelihood framework that accounts for differences in signal and background distributions, energy resolutions, and event topologies across both datasets. Combining tracks and cascades improves sensitivity across the entire sky and, since both components are all-sky datasets, adds information where one channel alone is limited. The results of our all-sky point-source search combining 14 years of track data and 10 years of cascade data, the most sensitive all-sky search to date, will be presented.
