Background Studies for the MINER Coherent Neutrino Scattering Reactor Experiment

Agnolet, Glenn; Baker, William K.; Barker, D.; Beck, Robin A.; Carroll, Timothy J.; Cesar, JP; Cushman, P.; Dent, James B.; Rijck, S. De; Dutta, Bhaskar; Flanagan, W.; Fritts, M.; Gao, Y.; Harris, H. R.; Hays, C.; Iyer, V.; Jastram, A.; Kadribasic, Fedja; Kennedy, A.; Kubik, A.; Ogawa, Izumi; Lang, K.; Mahapatra, R.; Mandic, V.; Martín, R. D.; Mast, N.; McDeavitt, Sean M.; Mirabolfathi, N.; Mohanty, B.; Nakajima, K.; Newhouse, J.; Newstead, Jayden L.; Phan, D. D.; Proga, M.; Roberts, A.; Rogachev, G. V.; Salazar, R.; Sander, J.; Senapati, Kartik; Shimada, M.; Strigari, Louis E.; Tamagawa, Y.; Teizer, W.; Vermaak, Jan; Villano, A. N.; Walker, Joel W.; Webb, Ben; Wetzel, Z.; Yadavalli, Shiv Akshar

doi:10.48550/arxiv.1609.02066

Cited by 15 publications

(27 citation statements)

References 1 publication

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“…The experiment has also achieved extremely low levels of radioactivity, including the lowest-achieved radon background in noble gas of 0.15 µBq/ kg, already low enough to enable next-generation searches [144]. The experiment is currently implementing a set of hardware modifications to mitigate the currently-limiting background from 210 Po on a detector surface in the experimental cooling system. After this upgrade, the experiment is targeting a background-free exposure with an exclusion sensitivity similar to the current results from XENON1T.…”

Section: Liquid Argon Detectorsmentioning

confidence: 99%

Direct Detection of Dark Matter -- APPEC Committee Report

Billard,

Boulay,

Cebrián

et al. 2021

Preprint

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This Report provides an extensive review of the experimental programme of direct detection searches of particle dark matter. It focuses mostly on European efforts, both current and planned, but does it within a broader context of a worldwide activity in the field. It aims at identifying the virtues, opportunities and challenges associated with the different experimental approaches and search techniques. It presents scientific and technological synergies, both existing and emerging, with some other areas of particle physics, notably collider and neutrino programmes, and beyond. It addresses the issue of infrastructure in light of the growing needs and challenges of the different experimental searches. Finally, the Report makes a number of recommendations from the perspective of a long-term future of the field. They are introduced, along with some justification, in the opening Overview and Recommendations section and are next summarised at the end of the Report. Overall, we recommend that the direct search for dark matter particle interactions with a detector target should be given top priority in astroparticle physics, and in all particle physics, and beyond, as a positive measurement will provide the most unambiguous confirmation of the particle nature of dark matter in the Universe.

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Section: Liquid Argon Detectorsmentioning

confidence: 99%

Direct Detection of Dark Matter -- APPEC Committee Report

Billard,

Boulay,

Cebrián

et al. 2021

Preprint

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“…The use of pulsed laser photons as the source also allowed us to have a better control over the energy to avoid TES readout non-linearity. Such a low baseline resolution detector is already in use at the MINER experiment 15 . Sensitivity to single e − /h + pair excitation offers unique opportunities for experiments seeking signal via nuclear recoil interactions including the possibility of background discrimination in directional detection searches 16 .…”

Section: Discussionmentioning

confidence: 99%

Large-mass single-electron-resolution detector for dark matter and neutrino elastic interaction searches

Iyer,

Mirabolfathi,

Agnolet

et al. 2020

Preprint

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Large mass single-electron-resolution solid state detectors are desirable to search for low mass dark matter candidates and to measure coherent elastic neutrino nucleus scattering (CEνNS). Here, we present results from a novel 100 g phonon-mediated Si detector with a new interface architecture. This detector gives a baseline resolution of ∼ 1e − /h + pair and a leakage current on the order of 10 −16 A. This was achieved by removing the direct electrical contact between the Si crystal and the metallic electrode, and by increasing the phonon absorption efficiency of the sensors. The phonon signal amplification in the detector shows a linear increase while the signal to noise ratio improves with bias voltage, up to 240 V. This feature enables the detector to operate at a low energy threshold which is beneficial for dark matter and CEνNS like searches.

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“…The gamma flux measurement has not been fully carried out by Taishan NPP. Hence, due to the similarities, the gamma flux is taken from the previous researches such as the FRJ-1 reactor core [37] and the TRIGA nuclear reactor core [38]. The flux of photons from the reactor with power P has an exponential shape and can be simply presented as [36]:…”

Section: A Nuclear Reactor As a Source Of Dark Bosonsmentioning

confidence: 99%

Light dark bosons in the JUNO-TAO neutrino detector

Smirnov,

Yang,

Liao

et al. 2021

Preprint

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This work presents a sensitivity study of a reactor liquid scintillator detector to three kinds of dark bosons with masses below 1 MeV, such as dark photons, axion-like particles and light scalar bosons. The JUNO-TAO detector with Taishan nuclear reactor is taken as a reference. With proposed 180 days data taking, the sensitivity to the dark bosons can reach ∼ 10 −5 95%C.L. for the optimized signal to background ratio for the electron coupling constant gX through inverse Comptonlike scattering. The background systematic uncertainty presents as the main limiting factor for the further sensitivity improvement. Additionally the differential and the inverse differential cross sections have been derived for all three boson types and their interactions with electrons in liquid scintillator.

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Background Studies for the MINER Coherent Neutrino Scattering Reactor Experiment

Cited by 15 publications

References 1 publication

Direct Detection of Dark Matter -- APPEC Committee Report

Direct Detection of Dark Matter -- APPEC Committee Report

Large-mass single-electron-resolution detector for dark matter and neutrino elastic interaction searches

Light dark bosons in the JUNO-TAO neutrino detector

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