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NPAC (Nuclear/Particle/Astro/Cosmo) Forums

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Organized by: Prof. Kimberley Palladino


Events During the Week of February 16th through February 23rd, 2020

Monday, February 17th, 2020

No events scheduled

Tuesday, February 18th, 2020

No events scheduled

Wednesday, February 19th, 2020

No events scheduled

Thursday, February 20th, 2020

The TeV-PeV Diffuse Neutrino Background
Time: 2:00 pm
Place: 4274 Chamberlin Hall
Speaker: Nathan Whitehorn, UCLA
Abstract: In 2014, the IceCube Neutrino Observatory announced the discovery of an isotropic, isoflavor diffuse background of neutrinos with energies extending from 10 TeV to well above 1 PeV, presumably associated with the unknown emitters of high-energy cosmic rays. Six years later, the origin of these neutrinos remains a mystery. The background is, within measurement uncertainties, uncorrelated with any of the standard catalog of high-energy sources (our galaxy, blazars, gamma-ray bursts, etc.), challenging explanations involving simple models. The 2017 detection of neutrino emission from the distant blazar TXS 0506+056 has only deepened this mystery. In this talk, I will discuss the current state of our knowledge of the high-energy neutrino sky and outline the next steps in the experimental program to resolve these questions.
Host: Albrecht Karle
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Friday, February 21st, 2020

No events scheduled