| Search for New Physics in tt ̅ Final States with Additional Heavy-Flavor Jets with the ATLAS Detector Javier Montejo studied physics and computer science at the Universidad de Salamanca and obtained a Masters and PhD at the Universidad Autónoma de Barcelona. He studied various aspects of the hierarchy problem in the tt plus heavy flavor final state. The search for ttH constitutes currently the most precise determination of the top Yukawa coupling. Additional searches for beyond-the-standard-model signatures in the same final state have placed stringent constraints on the particles predicted by some of most favored theories that address the hierarchy problem. His current work is focused on supersymmetric models with emphasis on unusual signatures through which supersymmetric particles might have gone unnoticed. |