2019 Spring Physics Colloquium 

강연일자: 2019. 06. 11. 화. 오후 5시

장소: 아산이학관 433호

강연자: Nora Brambilla (Technische Universitaet Muenchen)

강연주제: Quarkonium with Effective Field Theories

QCD is the field theory describing strong interactions. Heavy quarkonium is a multiscale system probing different energy regimes of the strong interactions, from the hard region, where an expansion in the coupling constant is possible and precision studies may be done, to the low-energy region,  dominated by confinement and the many manifestations  of nonperturbative dynamics. In addition the properties of production and absorption  of quarkonium in  a  medium  are crucial inputs  for the study of QCD at high density  and temperature, reaching out to cosmology and early universe studies. On the theoretical side  the last  decades  have seen the construction of new nonrelativistic effective field theories and the development in computational lattice QCD which supply us with a systematic calculational framework. On the experimental side the diversity, novelty and accuracy of the data  collected in the last years at tau-charm, B-factories and LHC experiments is impressive.I will outline this reach interplay of theoretical advancements and experimental success and its implication  on our control of strong interactions inside the Standard Model of Particle Physics.