Kavli Affiliate: Angela Olinto
| First 5 Authors: Matteo Battisti, Johannes Eser, George Filippatos, Angela Olinto, Giuseppe Osteria
| Summary:
The POEMMA-Balloon with Radio (PBR) is a proposed payload to fly on a NASA
Super Pressure Balloon (SPB). It will act as a pathfinder of the Probe Of
Extreme Multi-Messenger Astrophysics (POEMMA) detector. PBR will consist of an
innovative hybrid focal surface featuring a Fluorescence Camera (FC, based on
Multi-Anode Photomultiplier Tubes [MAPMTs], 1.05 $mu$s time resolution) and a
Cherenkov Camera (based on SiPMs, 10 ns time resolution), both mounted on the
same tiltable frame that can point from nadir up to 13$^circ$ above the
horizon. The FC’s main scientific goal is to observe, for the first time, the
fluorescence emission of Extensive Air Showers produced by Ultra-High Energy
Cosmic Rays from sub-orbital altitudes. This measurement will validate the
detection strategy for future space-based missions, such as POEMMA. As a
secondary goal, the FC will perform a search for macroscopic dark matter
through slowly evolving showers that will leave a signal similar to (but
distinct from) a meteor. PBR targets a launch in 2027 as a payload of an
ultra-long duration balloon flight with a duration of up to 100 days.
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