Evaluation of neutron nuclear data on xenon isotopes

Rashid, Md. Mamunur; Shigyo, Nobuhiro; Ishibashi, Kenji; Iwamoto, Nobuyuki; Iwamoto, Osamu

doi:10.1080/00223131.2015.1105164

Cited by 4 publications

(1 citation statement)

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“…7. At high xenon recoil energies it was observed that the elastic neutron scatter rates are significantly lower than the prediction of Geant4 simulations or direct calculations using evaluated nuclear data [33]. This rate deficiency is also found to be present for some medium xenon recoil energies with well-defined neutron TOF structures and does not appear to originate from an efficiency loss associated with the analysis cuts.…”

Section: Resultsmentioning

confidence: 82%

Calibrating the scintillation and ionization responses of xenon recoils for high-energy dark matter searches

Pershing

Naim²,

Lenardo³

et al. 2022

Phys. Rev. D

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Liquid xenon-based direct detection dark matter experiments have recently expanded their searches to include high-energy nuclear recoil events as motivated by effective field theory dark matter and inelastic dark matter interaction models, but few xenon recoil calibrations above 100 keV are currently available. In this work, we measured the scintillation and ionization yields of xenon recoils up to 426 keV. The experiment uses 14.1 MeV neutrons to scatter off xenon in a compact liquid xenon time projection chamber and produce quasi-monoenergetic xenon recoils between 39 keV and 426 keV. We report the xenon recoil responses and their electric field-dependence for recoil energies up to 306 keV; due to the low event statistics and the relatively mild field dependence, the yield values at higher energies are reported as the average of xenon responses for electric fields between 0.2-2.0 kV/cm. This result will enable xenon-based dark matter experiments to significantly increase their high energy dark matter sensitivities by including energy regions that were previously inaccessible due to lack of calibrations.

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Section: Resultsmentioning

confidence: 82%