In Superkamiokande, the differentiation between upward and downward muons produced by neutrinos is achieved through the analysis of Cherenkov light. The detector utilizes photomultiplier tubes (PMTs) to capture the Cherenkov light, which appears as a ring on the detector wall. By examining the timing and charge information from each PMT, researchers can accurately determine the interaction vertex, ring direction, and flavor of the incoming neutrino.
PREREQUISITESPhysicists, researchers in particle detection, and students studying high-energy physics will benefit from this discussion on neutrino detection methodologies in Superkamiokande.
Sounds like they can directly observe the direction of the incoming particle."The Cherenkov light is projected as a ring on the wall of the detector and recorded by the PMTs. Using the timing and charge information recorded by each PMT, the interaction vertex, ring direction and flavor of the incoming neutrino is determined."