as cuts to reject jets from pile-up collisions are applied. In addition, it is required that the minimal difference between the transverse momentum of the leading and the sub-leading jet be at least 30 GeV, i.e. $\Delta p_T^{j_{1},j_{2}}=p_T^{j_{1}}-p_T^{j_{2}}>$ 30 GeV, and that the minimal transverse momentum difference between the sub-leading and sub-sub-leading be at least 50 GeV, i.e. $\Delta p_T^{j_{2},j_{3}}=p_T^{j_{2}}-p_T^{j_{3}}>$ 50 GeV. These requirements ensure that small changes to jet energies (e.g. from reconstruction effects) do not lead to changes in the $p_T$ ordering of the jets, and so do not result in discrete changes in the orientation of the reference plane. Moreover, we veto fully back-to-back events by requiring that the $\Delta\Phi$ value between $j_1$ and $j_2$ is smaller than 3.0. This selection reduces uncertainty in the normal of the reference plane, since that normal becomes undefined when $j_1$ and $j_2$ are parallel. In total 29,063 events pass this selection. The selected events are further divided along the invariant mass between the leading and sub-leading jet within the ranges $500<m_{12}<700$ GeV, $700<m_{12}<900$ GeV and $900<m_{12}<2000$ GeV as well as for two rapidity regions of the three jet system, $y_{jjj}$, with $|y_{jjj}|<0.7$ and $0.7<|y_{jjj}|$.

Possible contributions to the selected final 