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The Daya Bay reactor neutrino experiment was designed to measure ?13 with an unpresesent sensitivity of sin22?13 down to 0.01 at 90% C.L. This is achieved with careful site selection and proper detector design. Placement of detector systems close to each of the two reactor clusters not only reduces ?e flux systematic uncertainties, but also cancels the common detection uncertainty when functional identical detectors are used in the near and far sites. With 621 days of data, the relative measurement of the ?e rate and spectrum between near and far detectors gives sin²θ13 = 0.084±0.005 and |Δm²ee| = 2.44+0.100.11 × 10-3eV² . The νe data sample tagged by neutron capture on hydrogen provides an independent measurement of sin²θ13 by the rate dificit of the far site. With 2 near sites and a far site, Daya Bay experiment collects νe interactions with multiple baselines, which allows a search for light sterile neutrinos based on the relative spectral difference between three experimental sites. A measurement of the absolute reactor antineutrino flux was also performed thanks to the large νe sample collected. [ABSTRACT FROM AUTHOR]

The non-zero neutrino mixing angle θ13 has been discovered and precisely measured by the current generation short-baseline reactor neutrino experiments. It opens the gate of measuring the leptonic CP-violating phase and enables the neutrino mass ordering. The JUNO and RENO-50 proposals aim at resolving the neutrino mass ordering using reactors. The experiment design, physics sensitivity, technical challenges as well as the progresses of those two proposed experiments are reviewed in this paper. [ABSTRACT FROM AUTHOR]

The Daya Bay reactor neutrino experiment has observed the disappearance of electron antineutrinos from nuclear reactors at ~kilometer baselines. The relative measurement of the ...e rate and spectrum between near and far detectors allows for a precision measurement of the oscillation parameters sin²2θ13 and |Δm²ee|. Two new antineutrino detectors (ADs) were installed in summer 2012, bringing the experiment to the final 8-AD configuration. With 621 days of data, Daya Bay has measured sin² 2θ13 = 0.084±0.005 and |Δm²ee| = 2.44+0.10-0.11 × 10-3 eV². This is the most precise measurement of sin² 2θ13 to date and the most precise measurement of |Δm²ee| in this channel. Several other analyses are also performed, including an independent measurement of sin² 2θ13 using ...e samples tagged by neutron capture on hydrogen, a search for light sterile neutrinos, and a measurement of the absolute reactor antineutrino flux. [ABSTRACT FROM AUTHOR]

The Daya Bay reactor neutrino experiment has observed the disappearance of electron antineutrinos from nuclear reactors at ~kilometer baselines. The relative measurement of the ve rate and spectrum between near and far detectors allows for a precision measurement of the oscillation parameters sin²2Θ13 and |Δmee² ee|. Two new antineutrino detectors (ADs) were installed in summer 2012, bringing the experiment to the final 8-AD configuration. With 621 days of data, Daya Bay has measured sin²2Θ13 = 0.084±0.005 and |Δmee²|=mee²| = 2.44-0.11+0.10 ×10-3 eV². This is the most precise measurement of sin²2Θ13 to date and the most precise measurement of |Δmee²| in this channel. Several other analyses are also performed, including an independent measurement of sin²2Θ13 using ve samples tagged by neutron capture on hydrogen, a search for light sterile neutrinos, and a measurement of the absolute reactor antineutrino flux.. [ABSTRACT FROM AUTHOR]

The non-zero neutrino mixing angle Θ13 has been discovered and precisely measured by the current generation short-baseline reactor neutrino experiments. It opens the gate of measuring the leptonic CP-violating phase and enables the neutrino mass ordering. The JUNO and RENO-50 proposals aim at resolving the neutrino mass ordering using reactors. The experiment design, physics sensitivity, technical challenges as well as the progresses of those two proposed experiments are reviewed in this paper. [ABSTRACT FROM AUTHOR]

Gadolinium loaded liquid scintillator (Gd-LS) is an excellent target material for reactor antineutrino experiments. Ideal Gd-LS should have long attenuation length, high light yield, long term stability, low toxicity, and should be compatible with the material used to build the detector. We have developed a new Gd-LS recipe in which carboxylic acid 3,5,5-trimethylhexanoic acid is used as the complexing ligand to gadolinium, 2,5-diphenyloxazole (PPO) and 1,4-bis[2-methylstyryl]benzene (bis-MSB) are used as primary fluor and wavelength shifter, respectively. The scintillator base is linear alkyl benzene (LAB). Eight hundred liters of Gd-LS has been synthesized and tested in a prototype detector. Results show that the Gd-LS has high quality and is suitable for underground experiments in large quantity. Large scale production facility has been built. A full batch production of 4 t Gd-LS has been produced and monitored for several months. The production of 180 t Gd-LS will be carried out in the near future. [ABSTRACT FROM AUTHOR]

The Daya Bay reactor neutrino experiment is located at the Daya Bay nuclear power plant in Shenzhen, China. The experiment deploys eight “identical” antineutrino detectors to measure antineutrino fluxes from six 2.9 GWth reactor cores in three underground experimental halls at different distances. The target zone of the Daya Bay detector is filled with 20 t 0.1% Gd doped LAB liquid scintillator. The baseline uncorrelated detector uncertainty is ∼0.38% using current experimental techniques. Daya Bay can reach a sensitivity of sin22θ13<0.01 with baseline uncertainties after 3 years of data taking. [ABSTRACT FROM AUTHOR]

The goal of the Double Chooz reactor experiment is the measurement of the θ13 neutrino mixing angle using two identical detectors at two different distance. The R&D is in the last stage and the detector construction is being started. The far detector is planned to start in 2009 and the near detector in 2010. After 3 years of operation, the sensitivity on sin2 2θ13 will be 0.03. The paper presents the overview, the status and prospects of the experiment. [ABSTRACT FROM AUTHOR]

A laboratory has been constructed by the TEXONO Collaboration at the Kuo-Sheng Reactor Power Plant in Taiwan to study low energy neutrino physics. A limit on the neutrino magnetic moment of μν(νe) < 7.2 × 10-11 μB at 90% confidence level has been achieved from measurements with a high-purity germanium detector, as well as the electron neutrinos (νe) produced from nuclear power reactors has been studied. Other research program at Kuo-Sheng are surveyed. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]