Speaker
Description
Fast neutron background is one of the dominant backgrounds in JUNO-TAO, originating from veto muons and untagged muons. Fast neutrons in the liquid scintillator produce a prompt signal through proton recoil and a delayed signal through neutron capture, forming IBD-like coincidences that can distort the measured antineutrino energy spectrum. In this work, we perform a dedicated muon-induced fast neutron study using both Monte Carlo simulation and real TAO data. Based on this combined analysis, we obtain the fast neutron energy spectrum in JUNO-TAO and provide a corresponding uncertainty evaluation. These results provide an essential input for background control and systematic uncertainty reduction in JUNO-TAO precision neutrino spectrum measurements.
| 请选择分会 | 中微子物理、粒子天体物理与宇宙学 |
|---|
