SoLid: A short baseline reactor neutrino experiment

Abstract

The SoLid experiment, short for Search for Oscillations with a Lithium 6 detector, is a new generation neutrino experiment which addresses the key challenges for high precision reactor neutrino measurements at very short distances and with little or no overburden. The primary goal of the SoLid experiment is to search for very short distance neutrino oscillations as a probe of eV-scale sterile neutrinos. This paper describes the SoLid detection principle, the mechanical design and the construction of the detector. It then reports on the installation and commissioning on site near the BR2 reactor, Belgium, and nally highlights its performance in terms of detector response and calibration.

Additive manufacturing of a 3D-segmented plastic scintillator detector for tracking and calorimetry of elementary particles

“…We believe that this new technology opens up new possibilities for the future of particle physics experiments. In particular, long-baseline accelerator neutrino oscillations [44][45][46][47] or those searching for new neutrino sterile states via short-baseline oscillations [48][49][50][51][52][53] can profit of the developed additive manufacturing process by building very large but finelysegmented scintillator detectors to obtain a large sample of very detailed images of neutrino interactions. Moreover, the developed production method will allow to easily build highly-performing fine-granularity electromag-netic or hadronic sampling calorimeters, enabling highresolution particle flow analysis and fulfill the requirements of future collider experiments [22,54].…”

Light sterile neutrino and leptogenesis

“…Another issue is the mass-induced oscillations between active neutrinos and sterile neutrino. Short-baseline oscillation experiments using electron antineutrinos from reactors [18][19][20][21][22][23][24] and those using muon neutrinos(antineutrinos) from accelerator-based beam lines [25,26] were performed to find the mixing angles and mass of the fourth neutrino. Assuming that the mass of the fourth neutrino is on the order of 1 eV, more precise experiments such as SBN [27] and JSNS 2 [28] are underway to obtain data in the near future.…”

Physics reach of a low threshold scintillating argon bubble chamber in coherent elastic neutrino-nucleus scattering reactor experiments

“…The payoff, if these challenges are met, includes precision measurements of neutrino properties enabled by the up to ×10 5 -higher neutrino flux, fully coherent scattering of low-energy neutrinos and pure antielectron neutrino flavor. A variety of detector technologies are now in an experimental race to make the first reactor CEνNS observation [3][4][5][6][7][8][9][10][11][12][13].…”

“…Two main detector configurations are considered in this work: a 10-kg LAr chamber operated at a 100-eV energy threshold and located 3 m from a 1-MW th reactor (setup A) 3 , where ∼8 neutrino events/day above threshold are expected; and a 100-kg LAr chamber operated at the same threshold and located 30 m from a 2000-MW th power reactor (setup B) 4 , where ∼1570 neutrino events/day above threshold are expected. These configurations assume a 2.4% uncertainty in the anti-neutrino flux and 5% systematic uncertainty in the energy threshold.…”

“…Low-threshold performance from private communication, publication in preparation 3. A TRIGA Mark III research reactor located at the National Institute for Nuclear Research (ININ) near Mexico City is being explored as a possible location 4.…”