scholarly journals Nuclear recoil energy scale in liquid xenon with application to the direct detection of dark matter

2011 ◽  
Vol 83 (6) ◽  
Author(s):  
Peter Sorensen ◽  
Carl Eric Dahl
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Energy Scale ◽  
Nuclear Recoil ◽  
Recoil Energy ◽  
Liquid Xenon

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 Sensitivity of direct detection experiments to neutrino magnetic dipole moments

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
D. Aristizabal Sierra ◽  
R. Branada ◽  
O. G. Miranda ◽  
G. Sanchez Garcia
Keyword(s):  
Dark Matter ◽  
Magnetic Dipole ◽  
Direct Detection ◽  
Dipole Moments ◽  
Nuclear Recoil ◽  
Active Volume ◽  
Electron Recoil ◽  
Flux Measurements ◽  
Neutrino Fluxes ◽  
One Year

Abstract With large active volume sizes dark matter direct detection experiments are sensitive to solar neutrino fluxes. Nuclear recoil signals are induced by 8B neutrinos, while electron recoils are mainly generated by the pp flux. Measurements of both processes offer an opportunity to test neutrino properties at low thresholds with fairly low backgrounds. In this paper we study the sensitivity of these experiments to neutrino magnetic dipole moments assuming 1, 10 and 40 tonne active volumes (representative of XENON1T, XENONnT and DARWIN), 0.3 keV and 1 keV thresholds. We show that with nuclear recoil measurements alone a 40 tonne detector could be as competitive as Borexino, TEXONO and GEMMA, with sensitivities of order 8.0 × 10−11μB at the 90% CL after one year of data taking. Electron recoil measurements will increase sensitivities way below these values allowing to test regions not excluded by astrophysical arguments. Using electron recoil data and depending on performance, the same detector will be able to explore values down to 4.0 × 10−12μB at the 90% CL in one year of data taking. By assuming a 200-tonne liquid xenon detector operating during 10 years, we conclude that sensitivities in this type of detectors will be of order 10−12μB. Reducing statistical uncertainties may enable improving sensitivities below these values.

Dark matter direct detection based on liquid xenon

2011 ◽  
Vol 41 (12) ◽  
pp. 1414-1422
Author(s):  
YueHuan WEI ◽  
KaiXuan NI
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Liquid Xenon

PandaX: A deep underground dark matter search experiment in China using liquid xenon

2018 ◽  
Vol 33 (30) ◽  
pp. 1830013 ◽  
Author(s):  
Li Zhao ◽  
Jianglai Liu
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Underground Laboratory ◽  
Liquid Xenon ◽  
Detection Experiment ◽  
Dark Matter Search ◽  
The Future ◽  
Search Experiment ◽  
Deep Underground ◽  
Scientific Results

The nature of dark matter is one of the most fundamental scientific unknowns. Particle physicists have spent decades searching for evidence of dark matter particles. The PandaX project is a staged xenon-based dark matter direct detection experiment located at the China Jinping Underground Laboratory. In this paper, we give an overview of the PandaX experiment, discuss its recent scientific results, and outline the plan for the future.

Nuclear recoil limits from the ZEPLIN I liquid xenon WIMP dark matter detector

2005 ◽  
Vol 49 (2-6) ◽  
pp. 245-249 ◽  
Author(s):  
G.J. Alner ◽  
H. Araujo ◽  
G.J. Arnison ◽  
J.C. Barton ◽  
A. Bewick ◽  
...  
Keyword(s):  
Dark Matter ◽  
Nuclear Recoil ◽  
Liquid Xenon

scholarly journals New Projections for Dark Matter Searches with Paleo-Detectors

Instruments ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 21
Author(s):  
Sebastian Baum ◽  
Thomas D. P.  Edwards ◽  
Katherine Freese ◽  
Patrick Stengel
Keyword(s):  
Dark Matter ◽  
Cross Sections ◽  
Direct Detection ◽  
Small Samples ◽  
Recoil Energy ◽  
Analysis Technique ◽  
Upper Limits ◽  
Nuclear Recoils ◽  
Microscopy Techniques ◽  
Nuclear Damage

Paleo-detectors are a proposed experimental technique to search for dark matter (DM). In lieu of the conventional approach of operating a tonne-scale real-time detector to search for DM-induced nuclear recoils, paleo-detectors take advantage of small samples of naturally occurring rocks on Earth that have been deep underground (≳5 km), accumulating nuclear damage tracks from recoiling nuclei for O(1)Gyr. Modern microscopy techniques promise the capability to read out nuclear damage tracks with nanometer resolution in macroscopic samples. Thanks to their O(1)Gyr integration times, paleo-detectors could constitute nuclear recoil detectors with keV recoil energy thresholds and 100 kilotonne-yr exposures. This combination would allow paleo-detectors to probe DM-nucleon cross sections orders of magnitude below existing upper limits from conventional direct detection experiments. In this article, we use improved background modeling and a new spectral analysis technique to update the sensitivity forecast for paleo-detectors. We demonstrate the robustness of the sensitivity forecast to the (lack of) ancillary measurements of the age of the samples and the parameters controlling the backgrounds, systematic mismodeling of the spectral shape of the backgrounds, and the radiopurity of the mineral samples. Specifically, we demonstrate that even if the uranium concentration in paleo-detector samples is 10−8 (per weight), many orders of magnitude larger than what we expect in the most radiopure samples obtained from ultra basic rock or marine evaporite deposits, paleo-detectors could still probe DM-nucleon cross sections below current limits. For DM masses ≲ 10 GeV/c2, the sensitivity of paleo-detectors could still reach down all the way to the conventional neutrino floor in a Xe-based direct detection experiment.

scholarly journals A Low Nuclear Recoil Energy Threshold for Dark Matter Search with CRESST-III Detectors

2018 ◽  
Vol 193 (3-4) ◽  
pp. 441-448 ◽  
Author(s):  
M. Mancuso ◽  
G. Angloher ◽  
P. Bauer ◽  
A. Bento ◽  
C. Bucci ◽  
...  
Keyword(s):  
Dark Matter ◽  
Nuclear Recoil ◽  
Energy Threshold ◽  
Recoil Energy ◽  
Dark Matter Search
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