scholarly journals Search for hep solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
B. Aharmim ◽  
S. N. Ahmed ◽  
A. E. Anthony ◽  
N. Barros ◽  
E. W. Beier ◽  
...  
Keyword(s):  
Solar Neutrinos ◽  
Sudbury Neutrino Observatory ◽  
Supernova Neutrino ◽  
Neutrino Background ◽  
Three Phases

scholarly journals Status of the Jiangmen Underground Neutrino Observatory

2019 ◽  
Vol 64 (7) ◽  
pp. 635
Author(s):  
M. Schever
Keyword(s):  
Energy Resolution ◽  
Liquid Scintillator ◽  
Solar Neutrinos ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Antineutrino Detector ◽  
Central Detector ◽  
Supernova Neutrino ◽  
Under Construction ◽  
Neutrino Background

The Jiangmen Underground Neutrino Observatory (JUNO) is a next generation multipurpose antineutrino detector currently under construction in Jiangmen, China. The central detector, containing 20 kton of a liquid scintillator, will be equipped with ∼18 000 20 inch and 25 600 3 inch photomultiplier tubes. Measuring the reactor antineutrinos of two powerplants at a baseline of 53 km with an unprecedented energy resolution of 3%/√︀E(MeV), the main physics goal is to determine the neutrino mass hierarchy within six years of run time with a significance of 3–4q. Additional physics goals are the measurement of solar neutrinos, geoneutrinos, supernova burst neutrinos, the diffuse supernova neutrino background, and the oscillation parameters sin2 O12, Δm212, and |Δm2ee| with a precision <1%, as well as the search for proton decays. The construction is expected to be completed in 2021.

scholarly journals A Search for Neutrinos from the SolarhepReaction and the Diffuse Supernova Neutrino Background with the Sudbury Neutrino Observatory

2006 ◽  
Vol 653 (2) ◽  
pp. 1545-1551 ◽  
Author(s):  
B. Aharmim ◽  
S. N. Ahmed ◽  
A. E. Anthony ◽  
E. W. Beier ◽  
A. Bellerive ◽  
...  
Keyword(s):  
Sudbury Neutrino Observatory ◽  
Supernova Neutrino ◽  
Neutrino Background

scholarly journals The effect of collective flavor oscillations on the diffuse supernova neutrino background

2008 ◽  
Vol 2008 (09) ◽  
pp. 013 ◽  
Author(s):  
Sovan Chakraborty ◽  
Sandhya Choubey ◽  
Basudeb Dasgupta ◽  
Kamales Kar
Keyword(s):  
Flavor Oscillations ◽  
Supernova Neutrino ◽  
Neutrino Background

RESULTS FROM THE PURE D2O PHASE OF THE SUDBURY NEUTRINO OBSERVATORY

2003 ◽  
Vol 18 (22) ◽  
pp. 3789-3807
Author(s):  
◽  
F. A. DUNCAN
Keyword(s):  
Neutral Current ◽  
Solar Neutrinos ◽  
Total Flux ◽  
Sudbury Neutrino Observatory ◽  
Charged Current ◽  
Mixing Angle ◽  
Cerenkov Detector ◽  
Neutrino Spectrum ◽  
Oscillation Analysis ◽  
Current Interaction

The Sudbury Neutrino Observatory is a 1000 T D2O Cerenkov detector that is sensitive to 8 B and hep solar neutrinos. Both Charged Current and Neutral Current interaction rates on deuterons as well as the Elastic Scattering interaction rate on electrons can be measured simultaneously. Assuming an undistorted 8 B neutrino spectrum, the total flux measured with the NC reaction is [Formula: see text], which is consistent with solar models. The νe component of the 8 B solar flux is [Formula: see text] for a kinetic energy threshold of 5 MeV. The non-νe component is [Formula: see text], which is 5.3σ greater than zero, giving strong evidence for solar νe flavor transformation. The Day-Night Asymmetry for the Charged Current interaction is [Formula: see text]. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the νe asymmetry is found to be [Formula: see text]. Combined with other solar neutrino data, a global MSW oscillation analysis strongly favors the Large Mixing Angle (LMA) solution.

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