In the near future, we expect that next-generation neutrino telescopes will provide us with the sensitivity required to discover the first sources of UHE neutrino point sources (> 100 PeV). In a recent paper, led by postdoc Damiano Fiorillo, we provided detailed forecasts for what the radio array of IceCube-Gen2 could achieve by looking for neutrino multiplets:
Recently, we put out a paper, led by PhD student Victor Valera, where we present the first complete forecasts of how well the planned radio array of IceCube-Gen2 will be able to measure the UHE (> 100 PeV) neutrino-nucleon cross section. The results are encouraging!
Thanks to our guest lecturers Joachim Kopp, Olga Mena, and Foeteini Oikonomou, to our topical seminar speakers from NBI Jason Koskinen, Tom Stuttard, Tyler Corbett, Oleg Ruchayskiy, Shashank Shalgar, and Rasmus Hansen, and to our eighteen student speakers from around the world.
Recently I gave an online introductory talk about neutrinos in the Thursday Morning Science seminar series of the University of L’Aquila. Here is the recording of that (sorry about the audio problems at the beginning!):
Students will be given topical introductions, along with an overview of the current state of the field and the open questions that confront it. The invited lecturers are internationally renowned experts in their fields. The school participants will gain a broad understanding of current theoretical problems in neutrino physics, state-of-the-art neutrino experiments, and applications of neutrinos in cosmology and astrophysics.
There is a vast potential in using the measurement of the flavor composition of high-energy (TeV-PeV) astrophysical neutrinos to test astrophysics and fundamental physics. But there is also plenty of uncertainty in the prediction of the allowed flavor composition at Earth, due to the uncertainties in the mixing parameters, and in the measurement of flavor composition in neutrino telescopes. In other words, flavor is a powerful tool, but it needs sharpening.
In our latest paper, we show that in the next 20 years, flavor will become the sharp tool it was always meant to be, thanks to new oscillation experiments and new neutrino telescopes:
The Future of High-Energy Astrophysical Neutrino Flavor Measurements Ningqiang Song, Shirley Weishi Li, Carlos A. Argüelles, Mauricio Bustamante, Aaron C. Vincent https://arxiv.org/abs/2012.12893
By 2040, we will be able to use flavor composition by itself to identify the production mechanism of high-energy astrophysical neutrinos:
The big POEMMA paper is finally out! It contains the science case, goals, and design of POEMMA, a twin-satellite experiment to detect the fluorescence and Cherenkov emission from extensive air showers triggered by ultra-high-energy cosmic rays and neutrinos in the atmosphere.