Leveraging Reinforcement Learning, Genetic Algorithms and Transformers for background determination in particle physics. - Guillermo Hijano Mendizabal; Davide Lancierini; Alex Marshall; Andrea Mauri 003; Patrick Haworth Owen; Mitesh Patel; Konstantinos Petridis; Shah Rukh Qasim; Nicola Serra; William Sutcliffe; Hanae Tilquin (CoRR, 2025)