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. 2017 Nov 29;77(12):812. doi: 10.1140/epjc/s10052-017-5178-x

Fig. 3.

Fig. 3

Expected (open circles and dotted line) and observed (filled circles and solid line) upper limit versus lifetime for different πv masses and decay modes. The green (dark) and yellow (light) bands indicate the quantiles of the expected upper limit corresponding to ±1σ and ±2σ for a Gaussian distribution. The decay πvbb¯ is assumed, unless specified otherwise