scholarly journals Solar neutrino physics with low-threshold dark matter detectors

2015 ◽  
Vol 91 (9) ◽  
Author(s):  
J. Billard ◽  
L. E. Strigari ◽  
E. Figueroa-Feliciano
Keyword(s):  
Dark Matter ◽  
Neutrino Physics ◽  
Solar Neutrino ◽  
Low Threshold

scholarly journals A Review of Basic Energy Reconstruction Techniques in Liquid Xenon and Argon Detectors for Dark Matter and Neutrino Physics Using NEST

Instruments ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 13
Author(s):  
Matthew Szydagis ◽  
Grant A. Block ◽  
Collin Farquhar ◽  
Alexander J. Flesher ◽  
Ekaterina S. Kozlova ◽  
...  
Keyword(s):  
Dark Matter ◽  
Neutrino Physics ◽  
Electric Fields ◽  
Direct Detection ◽  
Profile Likelihood ◽  
Liquid Argon ◽  
Energy Scale ◽  
Liquid Xenon ◽  
Nuclear Recoils ◽  
Available Information

Detectors based upon the noble elements, especially liquid xenon as well as liquid argon, as both single- and dual-phase types, require reconstruction of the energies of interacting particles, both in the field of direct detection of dark matter (weakly interacting massive particles WIMPs, axions, etc.) and in neutrino physics. Experimentalists, as well as theorists who reanalyze/reinterpret experimental data, have used a few different techniques over the past few decades. In this paper, we review techniques based on solely the primary scintillation channel, the ionization or secondary channel available at non-zero drift electric fields, and combined techniques that include a simple linear combination and weighted averages, with a brief discussion of the application of profile likelihood, maximum likelihood, and machine learning. Comparing results for electron recoils (beta and gamma interactions) and nuclear recoils (primarily from neutrons) from the Noble Element Simulation Technique (NEST) simulation to available data, we confirm that combining all available information generates higher-precision means, lower widths (energy resolution), and more symmetric shapes (approximately Gaussian) especially at keV-scale energies, with the symmetry even greater when thresholding is addressed. Near thresholds, bias from upward fluctuations matters. For MeV-GeV scales, if only one channel is utilized, an ionization-only-based energy scale outperforms scintillation; channel combination remains beneficial. We discuss here what major collaborations use.

scholarly journals Neutrino Masses, Neutrino Oscillations and Dark Matter

1990 ◽  
Vol 121 ◽  
pp. 213-230
Author(s):  
Haim Harari
Keyword(s):  
Dark Matter ◽  
Solar Neutrino ◽  
Neutrino Oscillations ◽  
Mass Range ◽  
Neutrino Masses ◽  
Direct Measurements ◽  
Theoretical Considerations

AbstractWe discuss bounds on neutrino masses using an analysis based on direct measurements, cosmological bounds, oscillation experiments, the solar neutrino puzzle and theoretical considerations on neutrino decays. We present four possible solutions for the mass range of the three neutrino flavors. We outline experiments which can distinguish among these solutions and discuss their implications for the cosmological dark matter problem.

Neutrino Physics and Dark Matter Physics with Ultra-Low-Energy Germanium Detector

2008 ◽  
Author(s):  
Lin Shin-Ted ◽  
Da-Shin Lee ◽  
Wolung Lee ◽  
She-Sheng Xue ◽  
Keyword(s):  
Dark Matter ◽  
Neutrino Physics ◽  
Germanium Detector ◽  
Low Energy

scholarly journals Low threshold results and limits from the DRIFT directional dark matter detector

2017 ◽  
Vol 91 ◽  
pp. 65-74 ◽  
Author(s):  
J.B.R. Battat ◽  
A.C. Ezeribe ◽  
J.-L. Gauvreau ◽  
J.L. Harton ◽  
R. Lafler ◽  
...  
Keyword(s):  
Dark Matter ◽  
Low Threshold
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