Avoiding Bias in Measurements of Fundamental Constants from High Resolution Quasar Spectra
John K. Webb; Chung-Chi Lee; Dinko Milaković · 2022 · Universe
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
The finding, in one line
“Supercomputer calculations show that, at high spectral resolution, procedures used in some previous analyses of spacetime variations of fundamental constants are likely to generate spurious measurements, biased systematically towards a null result.”
Abstract
Recent advances in spectroscopic instrumentation and calibration methods dramatically improve the quality of quasar spectra. Supercomputer calculations show that, at high spectral resolution, procedures used in some previous analyses of spacetime variations of fundamental constants are likely to generate spurious measurements, biased systematically towards a null result. Developments in analysis methods are also summarised and a prescription given for the analysis of new and forthcoming data.
Abstract by John K. Webb; Chung-Chi Lee; Dinko Milaković, Universe (2022) — licensed CC BY 4.0.
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Metadata source: DOAJ · DOI 10.3390/universe8050266