Scattering Interference effects on $H^{+}\to t\bar{b}$ Signals in MSSM Benchmark Scenarios

In this talk an investigation into the interference effects between the process $pp\to \bar{t}b{H}^{+}$ followed by the decay $H^{+}\to t\bar{b}$ and the background process $pp\to t\bar{t}b\bar{b}$ is presented. The level of interference in parts of the parameter space is shown to be high and as such it may spoil the results of typical analyses which treat signal and background as independent. This is shown for two benchmarks of the MSSM.