Fig. 10.

Longitudinal component of the phantom modes. Top: phantom mode of order 3 $B_z={\acute{G}}_3{\stackrel{\mathbf{´}}{\mathit{\Pi }}}_{z,3}$ with ${\acute{G}}_3=78\text{fT}/\mathrm{cm}$. Bottom: phantom mode of order 5 $B_z={\acute{G}}_5{\stackrel{\mathbf{´}}{\mathit{\Pi }}}_{z,5}$ with ${\acute{G}}_5=78\text{fT}/\mathrm{cm}$. Both field configurations generate a false EDM of $d_{n\leftarrow \mathrm{Hg}}^{\mathrm{false}}=1\times {10}^{-27}e\text{cm}$. The light green rectangles represent the inner volume of the precession chambers