Heterotic string theory implies the QCD axion mass is bounded below by 0.5 neV and typically falls in [0.5, 0.8] neV across most compactifications.
Diego-Palazuelos, J
2 Pith papers cite this work. Polarity classification is still indexing.
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A data-driven method calibrates relative CMB polarization angles via cross-correlations without assuming zero isotropic birefringence or primordial EB, forecasting 0.10° and 0.17° uncertainties for SO LAT and Planck at 145 GHz if SO SATs reach 0.08°.
citing papers explorer
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Heterotic String Theory Suggests a QCD Axion Near 0.5 neV
Heterotic string theory implies the QCD axion mass is bounded below by 0.5 neV and typically falls in [0.5, 0.8] neV across most compactifications.
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Calibration of CMB Polarisation Using Cross-Experiment Correlations
A data-driven method calibrates relative CMB polarization angles via cross-correlations without assuming zero isotropic birefringence or primordial EB, forecasting 0.10° and 0.17° uncertainties for SO LAT and Planck at 145 GHz if SO SATs reach 0.08°.