Daigo HARADA is a PhD student at the Department of Particle Physics, University of Geneva (UNIGE), specializing in the field of nuclear and particle physics. His research involves contributions to the ATLAS experiment, a major project at the Large Hadron Collider at CERN, which aims to explore fundamental questions in particle physics. HARADA collaborates with experienced researchers and develops skills in experimental techniques, data analysis, and theoretical concepts related to the interactions and properties of elementary particles. His commitment to advancing knowledge in this area is reflected in his participation in numerous publishable research projects, enhancing his expertise and contributing to the scientific community. He also engages with international collaborations, gaining exposure to a variety of perspectives and methodologies in experimental physics. Through his work, HARADA aims to deepen the understanding of the universe's fundamental components and their behavior through high-energy particle collisions.