in Sect. \[sec:MSSMResults\].

POWHEG Method {#sec:POWHEG}
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In this section, a brief outline of the POWHEG method is given. Further details can be found in [@Frixione:2007vw].

In the conventional parton shower approach, the inclusive differential cross section for the highest transverse momentum emission from an $N$-body process is given by d \^[[PS]{}]{}=B(\_N) d\_N . \[eq:PS\] Here we are considering a parton shower ordered in terms of the transverse momentum of the emitted parton, $p_T$. $ \Phi_N$ are the phase space variables of the $N$-body leading-order (LO) process and $B$ is the Born-level matrix element squared, including the relevant flux factor, such that the total LO cross section is $ \sigma^{\rm{LO}} = \int B(\Phi_N) d\Phi_N$. $ \mathcal{P}$ is the unregularized Altarelli-Parisi splitting kernel and $ \Phi_R$ is a set of variables parameterizing the phase space of the additional radiated parton. The radiative phase space is limited to the region $p_T \left(\Phi_R \right)>p_{T \rm{min}}$, where $p_{T \rm{min}} $ is a transverse momentum cut-off introduced to regularize the infra-red (IR) divergences in the splitting kernel. The Sudakov form factor for the parton shower is (p\_T) = ( - d\_R (p\_T (\_R) -p\_T ) ). \[eq:PSSudakov\] The square bracket in Eq. \[eq:PS\] integrates to 