Fig. 6.

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Comparison of the upper 95% confidence limits of the tensor-to-scalar ratio r for various experimental setups. Each point represents the mean of the 95% confidence limits evaluated from 20 simulations, and the error bar indicates the 68% region among the same simulations. The horizontal gray dashed line is the value of the baseline configuration, SN10. The true input value for all these configurations is r = 0.
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