Gamma Ray Showers Observed at Ground Level in Coincidence With Downward Lightning Leaders
Gamma Ray Showers Observed at Ground Level in Coincidence With Downward Lightning Leaders
Abstract Bursts of gamma ray showers have been observed in coincidence with downward propagating negative leaders in lightning flashes by the Telescope Array Surface Detector (TASD). The TASD is a 700‐km 2 cosmic ray observatory located in southwestern Utah, USA. In data collected between 2014 and 2016, correlated observations showing …