고에너지 입자 천체물리실험 연구실에서 서울시립대학교의 Ian James Watson 교수님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참여를 부탁 드립니다.

○ Date/Time: July 19 (Fri.) 11:00 am

○ Place: Natural Science 1,  Room No. 31214
○ Speaker: Prof. Ian James Watson (University of Seoul)
○ Title: Deep Learning for the HAWC Observatory
○ Abstract: We present the results of applying a transformer-based deep learning neural network to the data from the HAWC Gamma-Ray Observatory. HAWC observes the extensive air showers produced by very high energy gamma rays, and registers the Cerenkov radiation produced by the shower by PMTs placed in 300 large water tanks. The deep learning model takes the charge and relative timing information of the PMTs and aims to reconstruct the incoming direction of the initiating gamma ray and to discriminate showers produced by gamma rays from the overwhelming cosmic-ray background. Both tasks are vital for source analysis, where better angular reconstruction allows better source localization, and improved cosmic-ray rejection improves the signal-to-noise ratio. We will present the results on simulation and the gamma-ray sky maps from applying the network to a subset of the HAWC data.