Combinando Filtro Casado e Topologia para Aprimoramento da Reconstrução de Múons no Calorímetro Hadrônico do ATLAS

This work presents the study of event discrimination techniques for particles in the ATLAS experiment. The Gaussian energy estimator for maximum likelihood (MLEG) was applied in this project's context and compared with the technique currently used in the calorimeter, the Optimum Filter (OF2). Different topologies for fusion of the information of interest were also evaluated. The results acquired using experimental data showed that the MLEG estimator, for the case in which it is considered only the highest value estimated among four selected information, presents the maximum discrimination efficiency of the events of interest, being therefore the method best suited for the task.