Abstract
Analyzing the imprint of relic gravitational waves (RGWs) on the cosmic microwave background (CMB) power spectra provides a way to determine the signal of RGWs. In this Letter, we discuss a statistical bias, which could exist in the data analysis and has the tendency to overlook the RGWs. We also explain why this bias exists, and how to avoid it.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Zhao, W. Detecting relic gravitational waves in the CMB: A statistical bias. Eur. Phys. J. C 71, 1706 (2011). https://doi.org/10.1140/epjc/s10052-011-1706-2
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DOI: https://doi.org/10.1140/epjc/s10052-011-1706-2