NEOS Experiment

Youngju Ko, Bo-Young Han, Chang-Hwan Jang, Eun-Ju Jeon, Kyung-Kwang Joo, Ba-Ro Kim, Hong-Joo Kim, Hyunsoo Kim, Jinyu Kim, Young-Duk Kim, Jaison Lee, Joo-Young Lee (+7 others)
2019 Journal of Physics, Conference Series  
The NEOS detector take data from August 2015 to May 2016. The energy resolution of the detector is about 5% at 1 MeV and the ratio of signal to background is about 23. PSD is used to reduce backgrounds and it reduces more than 70% of backgrounds. The prompt energy spectrum was compared to the two models and the 5 MeV excess is first confirmed at short baseline. There is no strong evidence of light sterile neutrino with 3+1 hypothesis and region of low mass squared difference ∆m 2 41 in allowed
more » ... ∆m 2 41 in allowed region of Reactor Antineutrino Anomaly[1] is disfavored.
doi:10.1088/1742-6596/1216/1/012004 fatcat:lzg7rqf4izg4bhgh64hnvhwgdy