14.01.10 17:15

Hadronic physics from the lattice

C. Michael

What are hadrons made of? Is a meson made of qbar-q, qbar-qbar-q-q, meson-meson,...? A state that can decay strongly (resonance) necessarily has a meson-meson component - is this important? Are unstable particles different from stable ones? What is the nature of light-light scalar mesons? Where is the glueball? Are there hybrid mesons,...?
Lattice QCD is a first-principles method of attack. But we use unphysical (too heavy) quark masses, we have Euclidean time, we have cubic rotational symmetry only,... What can we learn?

Kategorie: Kolloquium