Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

High-energy reactor neutrino flux measurement at Daya Bay

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Neutrino Physics Poster Session


Dr Yongbo Huang (Guangxi University)


This poster will present the first measurement of high-energy reactor antineutrinos at the Daya Bay experiment. Based on the data collected over 1958 days, the Daya Bay experiment has observed about 9000 inverse beta decay candidates in the prompt energy region of 8-12 MeV from six commercial reactors. A multivariant analysis is applied to separate ~2500 signal events from backgrounds statistically. As a result, the hypothesis of no reactor antineutrinos with energy above 10 MeV is rejected with a significance of 6.2 standard deviations. This first direct measurement of high-energy reactor antineutrinos provides a unique data-based reference for other experiments and theoretical calculations.

In-person participation No

Primary author

Dr Yongbo Huang (Guangxi University)

Presentation materials