Direct measurement of the ionization quenching factor of nuclear recoils in germanium in the keV energy range

Bonhomme, A.; Bonet, H.; Buck, C.; Hakenmüller, J.; Heusser, G.; Hügle, Thomas; Lindner, M.; Maneschg, W.; Nolte, R.; Rink, T.; Pirovano, E.; Strecker, H.

doi:10.1140/epjc/s10052-022-10768-1

Cited by 24 publications

(6 citation statements)

References 43 publications

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“…The overall excluded region in the case of COHERENT is relatively weaker for the current COHERENT data compared to the other experiments but competitive with KATRIN, at least in the case of NH. However, more data in the future from COHERENT and other similar experiments CEνNS experiments can certainly improve these limits [91,108,121,[134][135][136][137][138][139][140][141][142][143][144].…”

Section: Jhep01(2023)052mentioning

confidence: 97%

“…Regarding the CEνNS, we have focused on the real data collected by the COHERENT experiment. However, future experiments with accelerator and reactor neutrinos can also test the extra dimensions using the different frameworks presented here [91,108,121,[134][135][136][137][138][139][140][141][142][143][144]. Moreover, since the size of the 4D mass of the heavy right-handed neutrinos is restricted only by the energy of the incoming neutrinos, an interesting application of this framework would be to the high energy facilities, for example, LHC [63], FASER [64], MATSULA [65], ShiP [66,67], Bell II [68], FCC [69].…”

Section: Summary and Future Outlookmentioning

confidence: 99%

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Extra dimensions with light and heavy neutral leptons: an application to CEνNS

Khan

2023

J. High Energ. Phys.

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We explore the possibility of relating extra dimensions with light and heavy Dirac-type neutral leptons and develop a framework for testing them in various laboratory experiments. The Kaluza-Klein modes in the large extra dimension models of the light neutral leptons could mix with the standard model neutrinos and produce observable effects in the oscillation experiments. We show that the chirality flipping up-scattering processes occurring through either neutrino magnetic dipole moment or the weakly coupled scalar interactions can also produce heavy Kaluza-Klein modes of the corresponding right-handed neutral leptons propagating in one or more extra dimensions. However, to conserve the four- dimensional energy-momentum, their masses must be below the maximum energy of the neutrinos in the initial state. The appreciable size of extra dimensions connected with these heavy neutral leptons can thus affect the cross-sections of these processes. This framework applies to any up-scattering process. Our work here focuses only on its application to the coherent elastic neutrino-nucleus scattering process. We derive constraints on the size of extra dimensions using the COHERENT data in oscillation and up-scattering processes. For model with one large extra dimension for the light neutral leptons, we obtain the limits, R ~ 3 μm (NH) and R ~ 2.5 μm (IH), on the size of extra dimension corresponding to the absolute mass limit, m0 ≤ 3 × 10−3 eV at 90% C.L. from the short-baseline oscillations. Using the up-scattering process for heavy neutral leptons, we obtain new parameter spaces between the size of extra dimensions and parameters of the dipole or scalar interactions.

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Section: Jhep01(2023)052mentioning

confidence: 97%

Section: Summary and Future Outlookmentioning

confidence: 99%

Extra dimensions with light and heavy neutral leptons: an application to CEνNS

Khan

2023

J. High Energ. Phys.

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“…It must be corrected by the quenching factor Q nr : E det = Q nr E R . The quenching factor in Ge is calculated using the Lindhard formula [63] (κ = 0.16, the usual value from the literature and matches recent low-energy measurements [64]), with a 10% systematic error adopted in this analysis.…”

Section: T >Gev@mentioning

confidence: 99%

Constraints on sub-GeV dark matter boosted by cosmic rays from the CDEX-10 experiment at the China Jinping Underground Laboratory

Xu¹,

Yang²,

Yue³

et al. 2022

Phys. Rev. D

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We report new constraints on light dark matter (DM) boosted by blazars using the 205.4 kg day data from the CDEX-10 experiment located at the China Jinping Underground Laboratory. Two representative blazars, TXS 0506+56 and BL Lacertae are studied. The results derived from TXS 0506+56 exclude DM-nucleon elastic scattering cross sections from 4.6 × 10 −33 cm 2 to 1 × 10 −26 cm 2 for DM masses between 10 keV and 1 GeV, and the results derived from BL Lacertae exclude DMnucleon elastic scattering cross sections from 2.4 × 10 −34 cm 2 to 1 × 10 −26 cm 2 for the same range of DM masses. The constraints correspond to the best sensitivities among solid-state detector experiments in the sub-MeV mass range.

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“…The scintillator cell was developed and first used in the context of an ionization quenching measurement in germanium (Ge) crystals [26]. In this measurement, eleven LS modules were positioned around a Ge detector for a coincidence measurement of scattered neutrons inside the crystals.…”

Section: Scintillator Modulementioning

confidence: 99%

Safe liquid scintillators for large scale detectors

Bonhomme

Buck²,

Gramlich³

et al. 2022

J. Inst.

Self Cite

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Many experiments in particle physics, in particular in the field of neutrino searches, rely on organic liquid scintillators as target and detection material. The size of these detectors was continously growing in the last decades, up to the kiloton scale. In several cases these detectors are located at sites with enhanced safety requirements such as underground laboratories or in the vicinity of nuclear reactors. Therefore, there is strong demand in liquids which are safe with respect to aspects such as fire protection, human health or environmental pollution. The flash point, the vapor pressure or the toxicity need to be significantly improved as compared to classical solvents such as xylene or pseudocumene. We present and compare the performance and optical properties of scintillators based on high flash point solvents. In particular, polysiloxane based scintillators are characterized by outstanding properties in terms of safety.

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Direct measurement of the ionization quenching factor of nuclear recoils in germanium in the keV energy range

Cited by 24 publications

References 43 publications

Extra dimensions with light and heavy neutral leptons: an application to CEνNS

Extra dimensions with light and heavy neutral leptons: an application to CEνNS

Constraints on sub-GeV dark matter boosted by cosmic rays from the CDEX-10 experiment at the China Jinping Underground Laboratory

Safe liquid scintillators for large scale detectors

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