HEP2026: 42nd Conference on Recent Developments in High Energy Physics and Cosmology [NTUA] Jul 8 – 11, 2026

Giant Radio Array for Neutrino Detection (GRAND): Candidate selection and trigger optimization in the GP80 Prototype

Jul 8, 2026, 6:50 PM

20m

Main Hall (Level 1) (National Technical University of Athens)

Detectors

Speaker

George Vittakis (University of the Aegean)

Description

The GRAND experiment aims to observe ultra-high-energy cosmic particles through the 10–200 MHz radio pulses of extensive air showers. The Grand Proto 80 (GP80) prototype is currently operating at Dunhuang as a testbed for the future full-scale array. We present an end-to-end analysis combining a Monte Carlo simulation chain with realistic GP80 noise, a directional reconstruction validated against the electrical field of the RF pulses simulated by ZHAireS, and a systematic optimization of the front-end trigger parameters. The research work aims to a calibrated trigger configuration and a hierarchical event-selection methodology applied to GP80 data, providing therefor the foundation for the upcoming sky-distribution and cosmic-ray identification studies.

Presentation materials

GRAND_HEP2026_v1.pdf