아래와 같이 우주상수문제 연구실 세미나를 안내드립니다.

많은 관심과 참석을 부탁드립니다.

* 일시: 2022년 9월 30일(금) 14시

* 장소: 제1물리관 105호 대회의실

* 연사: 강대경 교수님(푸단대학교)

* 제목: Studying QCD events using effective field theory

* 초록: One of classic ways of studying QCD events in high-energy collisions is to measure event shape variables that are observables designed to characterize geometric feature of the event. An effective field theory approach allows to make predictions for the event shapes to unprecedented level of precision and detemine the strong coupling constant at 1% accuracy. However, the value of coupling constant tends to be lower than other results. The discrepancy has not been resolved for a decay and this challenges our understanding of QCD using effective field theory. I will discuss current status of the discrepancy, review the effective field theory method, and report our progress on event shapes for future electron-ion collider which offers new opportunity to make an independent test and may shed lights on the discrepancy.