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HEP: Understanding astrophysical sources of high-energy neutrinos

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Ke Fang, University of Maryland
When
16 March 2016 from 2:30 PM to 3:30 PM
Where
339 Davey Laboratory
Contact Name
Kohta Murase
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The origin of astrophysical neutrinos remains a mystery. The first detections of TeV-PeV neutrinos by the IceCube Observatory starts to reveal important features of the sources, including their energy spectrum, spacial distribution, Galactic/extragalactic origin and relation to the isotropic diffusive gamma-ray background. Meanwhile, an absence of detection of EeV neutrinos poses constraints on the highest energy cosmic ray sources in the Universe, including their particle mass composition and neutrino production efficiency. In light of recent observational results, I will review the neutrino production mechanism and multi-messenger signatures of potential neutrino sources, with special focus on galaxy clusters as PeV sources and fast-spinning newborn pulsars as EeV sources. Finally from an experimental perspective, I will discuss new search method for astrophysical sources in data from current and future neutrino experiments.

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