# Neutrino 2018 - XXVIII International Conference on Neutrino Physics and Astrophysics

4-9 June 2018
Heidelberg
Europe/Berlin timezone
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# Contribution Poster reactor

Poster (not participating in poster prize competition)

# Spectral measurement of electron antineutrino disappearance via neutron capture on hydrogen at Daya Bay

• Prof. Qun WU

## Authorship annotation

for the Daya Bay collaboration

## Session and Location

Monday Session, Poster Wall #164 (Ballroom)

## Abstract content

The Daya Bay experiment has measured $sin^2(2\theta_{13})$ and $\Delta m^2_{32}$ with better than 4% precision using an inverse beta decay (IBD) sample tagged via neutron capture on gadolinium (nGd). A precise and independent measurement of the oscillation parameters is performed with IBDs tagged via neutron capture on hydrogen (nH), a statistically distinct sample with largely different systematic uncertainties. Efforts have gone into developing an energy model that improves the characterization of detector response. This enables a spectral measurement of reactor antineutrino disappearance with the nH sample. Data-driven methods have been developed to precisely estimate the backgrounds and to better control the systematic uncertainties. This work will be presented, along with the lastest nH oscillation results.

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