Speaker
Daniel Greiner
(Univ. Tuebingen)
Description
Multi-detector liquid-scintillator reactor anti-ν experiments can play an
important role on the high precision era of neutrino oscillations parameters.
Multi-detector experiments rely on the relative response comparison across
detectors. Therefore, they need to face a novel concept of detector design
and calibration. Detectors are to be designed such that they are easily
calibrated to reach unprecedented inter-detector calibration precision: <
0.6%. To this aim, the Double Chooz collaboration has conceived a multi-
volume (4 volumes) detectors plus an outer veto. This concept minimises
the impact of systematic uncertainties of both relative detectors responses
and analysis cuts, while granting the largest background reduction possible.
Each detector is endowed with the latest technology such as very fast FADC
(codeveloped with CAEN) to control detector systematic like relative
deadtime and backgrounds (different in each detector) identification. Such a
design has strongly inspired all other collaborations aiming to reach the
same compelling physics. The statics power necessary demands that metal
loaded liquid scintillator must be stable over 5 years running. Scintillator
stability has been a limiting factor in previous similar experiments. Double
Chooz R&D programme (5 years long now) has achieved a stable
formulation of scintillator with the necessary properties. I would aim to
highlight the Double Chooz R&D programme emphasising our strategies for
the detector systematics and inter-detector calibration novelties.
Author
Daniel Greiner
(Univ. Tuebingen)
Co-author
Anatael Cabrera Serra
(University of Oxford)
