Nuclear Data Sheets for A = 32

Ouellet, C.; Singh, Balraj

doi:10.1016/j.nds.2011.08.004

Cited by 82 publications

(97 citation statements)

References 412 publications

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“…Its Fermi decay branch feeds a 1 + , T = 1 state in 32 S, whose position in the spectrum at 7001-keV excitation [11] is very close to a known 1 + , T = 0 state at 7190 keV [12]. As discussed below, a calculation of δ C for this case yields δ C = 4.8(5)%, a significantly larger value than those found in A = 4n + 2 nuclei.…”

mentioning

confidence: 67%

“…Except for a strong peak at 677 keV from the decay of 30 S nearly every statistically significant peak is associated with the decay of 32 Cl. One exception is at 2776 keV where 360 ± 50 counts are seen which could not be identified based on the known levels in 32 S [12] nor with any contaminants. If this was, in fact, a product of the decay of 32 Cl, it would only represent a 0.1% γ-ray yield.…”

Section: B Qec and The β Efficiencymentioning

confidence: 90%

See 1 more Smart Citation

βdecay of32Cl: Precisionγ-ray spectroscopy and a measurement of isospin-symmetry breaking

et al. 2012

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mentioning

confidence: 67%

Section: B Qec and The β Efficiencymentioning

confidence: 90%

βdecay of32Cl: Precisionγ-ray spectroscopy and a measurement of isospin-symmetry breaking

et al. 2012

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“…Consequently, the exact source and location of the silicon used in the production and fabrication of silicon detectors may impact the concentration level of 32 Si observed in future detectors. The long ∼153 year half-life of 32 Si [17] means the concentration of 32 Si measured in decays/kg/day is essentially fixed once the Si detector crystal is grown. Although the literature [18] suggests low-radioactivity silicon is in principle available for rare-event searches, we assumed the central value of the 32 Si concentration recently measured by the DAMIC Collaboration in their CCD detectors, which was 80 þ110 −65 decays=kg=day at a 95% confidence level [19].…”

Section: Productionmentioning

confidence: 99%

Projected sensitivity of the SuperCDMS SNOLAB experiment

Agnese¹,

Anderson²,

Aramaki³

et al. 2017

Phys. Rev. D

294

339

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SuperCDMS SNOLAB will be a next-generation experiment aimed at directly detecting low-mass particles (with masses ≤ 10 GeV=c 2 ) that may constitute dark matter by using cryogenic detectors of two types (HV and iZIP) and two target materials (germanium and silicon). The experiment is being designed with an initial sensitivity to nuclear recoil cross sections ∼1 × 10 −43 cm 2 for a dark matter particle mass of * Corresponding author. tsaab@ufl.edu PHYSICAL REVIEW D 95, 082002 (2017) 2470-0010=2017=95(8)=082002 (17) 082002-1 © 2017 American Physical Society 1 GeV=c 2 , and with capacity to continue exploration to both smaller masses and better sensitivities. The phonon sensitivity of the HV detectors will be sufficient to detect nuclear recoils from sub-GeV dark matter. A detailed calibration of the detector response to low-energy recoils will be needed to optimize running conditions of the HV detectors and to interpret their data for dark matter searches. Low-activity shielding, and the depth of SNOLAB, will reduce most backgrounds, but cosmogenically produced 3 H and naturally occurring 32 Si will be present in the detectors at some level. Even if these backgrounds are 10 times higher than expected, the science reach of the HV detectors would be over 3 orders of magnitude beyond current results for a dark matter mass of 1 GeV=c 2 . The iZIP detectors are relatively insensitive to variations in detector response and backgrounds, and will provide better sensitivity for dark matter particles with masses ≳5 GeV=c 2 . The mix of detector types (HV and iZIP), and targets (germanium and silicon), planned for the experiment, as well as flexibility in how the detectors are operated, will allow us to maximize the low-mass reach, and understand the backgrounds that the experiment will encounter. Upgrades to the experiment, perhaps with a variety of ultra-low-background cryogenic detectors, will extend dark matter sensitivity down to the "neutrino floor," where coherent scatters of solar neutrinos become a limiting background.

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“…A similar curve was also generated using the well-known relative intensities of peaks in the 32 Cl data [35,37] from 1547 keV to 7 MeV. The 152 Eu curve was then extrapolated to 1547 keV and the 32 Cl curve was scaled to match, producing a continuous relative efficiency curve up to 7 MeV.…”

Section: The Thermonuclearmentioning

confidence: 99%