(Left) Effective mass of the single pion from the point source (blue circles) and the smeared source (red triangles). (Right) Effective energy shift of two pions, |$\Delta E_{\pi\pi} = E_{\pi\pi} - 2m_\pi$|⁠, from the point (blue circles) and smeared (red triangles) sources. Cyan and magenta solid lines with bands represent central values and statistical errors from fits to point and smeared data in these intervals, respectively.