Jul 12 – 23, 2021
Europe/Berlin timezone

Overview of Cherenkov Telescope onboard EUSO-SPB2 for the Detection of Ultra-High Energy Neutrinos

Jul 14, 2021, 6:00 PM
1h 30m


Talk NU | Neutrinos & Muons Discussion


Mahdi Bagheri (Georgia Institute of Technology)


Astrophysical Ultra-High Energy (UHE) neutrinos probe the accelerators of Ultra-High Energy Cosmic Rays (UHECR), the composition of UHECR, and neutrino physics at the highest energies. UHE-tau neutrinos (E > 10 PeV) skimming the Earth produce tau leptons which can emerge from the ground, decay, and initiate an upward-going particle shower in the atmosphere. By measuring the Cherenkov emission from these extensive air showers, the particle shower energy and incident neutrino direction can be reconstructed. By using a Cherenkov telescope in the Extreme Universe Space Observatory Super Pressure Balloon 2 (EUSO-SPB2) instrument, we will classify known and unknown sources of backgrounds for future space-based neutrino detectors. Furthermore, we will search for UHE-tau neutrinos below the limb and observe air showers from cosmic rays above the limb. EUSO-SPB2 is an approved NASA ultra-long-duration balloon mission that is planned to fly in 2023 and is a precursor of the Probe of Extreme Multi-Messenger Astrophysics (POEMMA), a candidate for an Astrophysics probe-class mission. The 0.785 m^2 Cherenkov telescope is equipped with a 512-pixel SiPM camera covering a 12.8° x 6.4° (Horizontal x Vertical) field of view. The camera signals are digitized with a 100 MS/s readout system. In this presentation, we discuss the status of the telescope development, the camera integration, and simulation studies of the camera response.


Tau Neutrino, Cherenkov Telescope, Instrumentation

Subcategory Future projects

Primary author

Mahdi Bagheri (Georgia Institute of Technology)


Eleanor Judd (Space Sciences Laboratory, UC Berkley) Eliza Gazda (Georgia Institute of Technology) Evgeny Kuznetsov (The University of Alabama in Huntsville) Ivan Fontane (The University of Alabama in Huntsville) Jane Nachtman (University of Iowa) John Krizmanic (4NASA/Goddard Space Flight Center) Prof. Lawrence Wiencke (Colorado School of Mines) Mark Christl (Marshall Space Flight Center) Michael Miller (University of Iowa) Nepomuk Otte (Georgia Institute of Technology) Oscar Romero Matamala (Georgia Institute of Technology) Patrick Reardon Yaser Onel (University of Iowa) for the JEM-EUSO Collaboration

Presentation materials