Coherent elastic neutrino nucleus scatter response of semiconductor detectors to nuclear reactor antineutrinos

Ang, Wei Eng; Prasad, Shikha; Mahapatra, R.

doi:10.1016/j.nima.2021.165342

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…The level of thermal neutron fluxes that may be present in underground laboratories (mostly from radiogenic sources in deep labs) is comparable to the contemporary rate limits on dark matter scattering. Furthermore, in the CEνNS venue the thermal neutron capture background could also play an important role due to the proximity of some experiments to neutron-generating reactors [25,26]. In both of these situations the authors recommend studies of the thermal neutron flux levels and taking the thermal neutron capture background into account during data analysis.…”

Section: Discussionmentioning

confidence: 99%

Neutron capture-induced silicon nuclear recoils for dark matter and CE$ν$NS

Harris¹,

Biffl²,

Villano³

2023

Preprint

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Following neutron capture in a material there will be prompt nuclear recoils in addition to the gamma cascade. The nuclear recoils that are left behind in materials are generally below 1 keV and therefore in the range of interest for dark matter experiments and CEνNS studies-both as backgrounds and calibration opportunities. Here we obtain the spectrum of prompt nuclear recoils following neutron capture for silicon.

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Section: Discussionmentioning

confidence: 99%

Neutron capture-induced silicon nuclear recoils for dark matter and CE$ν$NS

Harris¹,

Biffl²,

Villano³

2023

Preprint

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Light vector bosons and the weak mixing angle in the light of future germanium-based reactor CEνNS experiments

Lindner,

Rink,

Sen

2024

J. High Energ. Phys.

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In this work, the sensitivity of future germanium-based reactor neutrino experiments to the weak mixing angle sin2θW, and to the presence of new light vector bosons is investigated. By taking into account key experimental features with their uncertainties and the application of a data-driven and state-of-the-art reactor antineutrino spectrum, the impact of detection threshold and experimental exposure is assessed in detail for an experiment relying on germanium semiconductor detectors. With the established analysis framework, the precision on the Weinberg angle, and capability of probing the parameter space of a universally coupled mediator model, as well as a U(1)B−L-symmetric model are quantified. Our investigation finds the next-generation of germanium-based reactor neutrino experiments in good shape to determine the Weinberg angle sin2θW with < 10% precision using the low-energetic neutrino channel of CEνNS. In addition, the current limits on new light vector bosons determined by reactor experiments can be lowered by about an order of magnitude via the combination of both CEνNS and EνeS. Consequently, our findings provide strong phenomenological support for future experimental endeavours close to a reactor site.

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