High Level Trigger Optimization Studies in the ATLAS search for Higgs Boson Pair Production in the $\text{HH} \rightarrow b\bar{b} \tau^+_\text{had} \tau^-_\text{had} $ channel

The Standard Model of particle physics predicts the existence of the trilinear Higgs self coupling vertex. This can be studied through the Higgs boson pair production process, which is yet to be observed. The primary focus of this analysis is to optimise High Level Triggers (HLT) at ATLAS, for the Higgs boson pair production channel, with $b\bar{b}\tau^+_{had} \tau^-_{had}$ final states. The specific goal is to improve signal acceptance and background rejection in the trigger chains relevant for the study of the HH$\rightarrow b\bar{b} \tau^+_{had} \tau^-_{had}$ channel. The trigger selection criteria for two different di-$\tau$ chains and the $b+\tau$ chain have been fine-tuned to increase signal selection efficiency while maintaining or, in some cases, decreasing background rates.