Why do we collide heavy ions?
일 시 : 2021년 03월 23일 화요일 16:00
연 사 : 김 용 선 교수 (세종대학교 물리천문학과)
장 소 : 온라인 (https://cern.zoom.us/j/92339346234?pwd=L29Ld1lCV3JoWXdTQ2F0NThUQ0kzdz09 , 회의 ID : 923 3934 6234)
Strong interaction is the most active force out of four fundamental forces that are observed in the Universe as its name says. It is responsible for 97% of the mass for the ordinary particles in the universe excluding dark matter and dark energy. On the other hands, however, it is the least understood for its property called confinement. For the past century, particle physicists have strived to break this confinement to reveal the nature of this force with numerous experiments, which resulted in the development of the Quantum Chromodynamics. In this seminar, we will review the history of studies on strong interaction, from the early 20th century to the most recent experiments at the LHC. Particular highlights will be made on the hard probes in the heavy-ion experiments at the LHC.