were discarded. The dijet invariant mass, $m_{jj}$, was formed from the vector sum of the two hardest jet momenta and events were vetoed if $m_{jj} \leq 1.0 {\,\mathrm{TeV}}$.

![Dijet invariant mass distribution for the lightest RS graviton decaying to jets. The left-hand plot shows the distribution in the full range while the right-hand plot emphasises the effect on the peak region $2.1 {\,\mathrm{TeV}}\leq m_{jj} \leq 2.3 {\,\mathrm{TeV}}$. The mass of the graviton was $m_G = 2.23 {\,\mathrm{TeV}}$ and the coupling $k/ \bar{M}_{pl} = 0.1 $. LHC events were simulated with $\sqrt{s}=8 {\,\mathrm{TeV}}$. The yellow and orange bands were generated by varying the event tune parameters in the POWHEG corrected and conventional parton shower distributions respectively.[]{data-label="fig:mass distribution"}](figure_3a)

![Dijet invariant mass distribution for the lightest RS graviton decaying to jets. The left-hand plot shows the distribution in the full range while the right-hand plot emphasises the effect on the peak region $2.1 {\,\mathrm{TeV}}\leq m_{jj} \leq 2.3 {\,\mathrm{TeV}}$. The mass of the graviton was $m_G = 2.23 {\,\mathrm{TeV}}$ and the coupling $k/ \bar{M}_{pl} = 0.1 $. LHC events were simulated with $\sqrt{s}=8 {\,\mathrm{TeV}}$. The yellow and orange bands were generated by varying the event tune parameters in the POWHEG corrected and conventional parton 