Integrating out astrophysical uncertainties
By P. Fox, Jia Liu, N. Weiner. 2010
170 citations recorded by the source corpus.
Underground searches for dark matter involve a complicated interplay of particle physics, nuclear physics, atomic physics, and astrophysics. We attempt to remove the uncertainties associated with astrophysics by developing the means to map the observed signal in one experiment directly into a predicted rate at another. We argue that it is possible to make experimental comparisons that are completely free of astrophysical uncertainties by focusing on integral quantities, such as g(v{sub min})=v{sub min}dvf(v)/v and v{sub thresh}dvvg(v). Direct comparisons are possible when the v{sub min} space probed by different experiments overlap. As examples, we consider the possible dark matter signals at CoGeNT, DAMA, and CRESST-Oxygen. We find that the expected rate from CoGeNT in the XENON10 experiment is higher than observed, unless scintillation light output is low. Moreover, we determine that S2-only analyses are constraining, unless the charge yields Q{sub y} or approx. 70% for m{sub {chi}=}7 GeV), while for higher quenching factors, it makes an explicit prediction (0.8-0.9 cpd/kg) for the modulation to be observed at CoGeNT. Finally, we find CDMS-Si, even with a 10 keV threshold, asmore » well as XENON10, even with low scintillation, would have seen significant rates if the excess events at CRESST arise from elastic WIMP scattering, making it very unlikely to be the explanation of this anomaly.« less
Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/d415cbbc0dbfd4dbb3dae5ba860de4c52c927e96
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Citations in the corpus
- Dark Matter through the Higgs portal (2019, methodology): “Notice that a proper assessment of the astrophysical inputs is also crucial when the outcome of different experiments is compared; this problem can nevertheless be encompassed through the so–called halo independent methods [295–301].”
- Dark matter direct-detection experiments (2015, methodology): “Using the monotonicity of the velocity integral [230], η can be approximated to be independent of the detector response function and, hence, being common to all experiments.”
- Colloquium: Annual modulation of dark matter (2013, background): “…anomalies, as shown in this figure, are highly dependent on the assumptions made about the particle and astrophysics [see Fox, Kribs, and Tait, 2011; Fox, Liu, and Weiner, 2011; Herrero-Garcia, Schwetz, and Zupan, 2012a; Herrero-Garcia, Schwetz, and Zupan, 2012b for astrophysicsindependent…”