Title:Strange Dibaryons from Lattice QCD

Speaker:Tetsuo Hatsuda, Director, RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS)

Date:2018-12-03 16:00

Venue:C302,New Science Building

 

Abstract: Quantum chromodynamics (QCD) is the theory about the strong interaction, one of the four fundamental interactions in nature. Not like the electromagnetic interactions, the coupling constant of QCD is increasingly larger when the distance of the quarks becomes larger, so it is called running coupling constant. As a result, analytic or perturbative solutions in low-energy QCD are hard or impossible to obtain. Lattice QCD is a well-established non-perturbative approach to solving the quantum chromodynamics (QCD) theory of quarks and gluons. It is a lattice gauge theory formulated on a grid or lattice of points in space and time. In this colloquium, after reviewing the current status on the studies of baryon-baryon interactions from  lattice QCD, dibaryon candidates with strange quarks will be discussed on the basis of the HAL QCD method in lattice QCD.