signal events are enhanced.

![image](Figure1_QCD.pdf){width="48.00000%"} ![image](Figure1_VB.pdf){width="48.00000%"} ![image](Figure1_TTbar.pdf){width="48.00000%"} ![image](Figure1_LM6.pdf){width="48.00000%"}

SUSY and SM in the razor plane
------------------------------

The expected distributions of the main SM backgrounds in the razor plane, based on simulation, are shown in Fig. \[fig:raz-plane\], along with the results from the CMSSM low-mass benchmark model LM6 [@PTDR2], for which ${\ensuremath{M_\Delta}\xspace}= 831$. The peaking behavior of the signal events at ${\ensuremath{M_R}\xspace}\approx {\ensuremath{M_\Delta}\xspace}$, and the exponential fall-off of the SM distributions with increasing ${\ensuremath{M_R}\xspace}$ and ${\ensuremath{R^2}\xspace}$, are to be noted. For both signal and background processes, events with small values of ${\ensuremath{M_R}\xspace}$ are suppressed because of a requirement that there be at least two jets above a certain threshold in (Section \[sec:BOX2011\]).

In the context of SMS, we refer to the pair production of squark pairs $\PSq$, $\PSq^*$, followed by $\PSq \to \Pq~\chiz_1$, as “T2" scenarios [@SUS-11-016], where the $\tilde\cPq^*$ state is the charge conjugate of the $\tilde\cPq$ state. Figure \[fig:T2-tutorial\] (a) shows a diagram for heavy-squark pair production. The distributions of ${\ensuremath{M_R}\xspace}$ and ${\ensuremath{R^2}\xspace}$ for different LSP masses are shown in Figs. \[fig:T2-tutorial\] (b) and (c). Figure \[fig:T2-tutorial\] (d) shows the distribution of signal events in the razor plane. The colored bands running from top left to bottom right show 