Speaker
Dr
Craig Roberts
(Argonne)
Description
Among the basic questions posed by Nature, the following three are basic to hadron physics: How does the ≈ 1 GeV mass-scale that characterizes atomic nuclei appear; Why does it have the observed value; and, enigmatically, why are the composite Nambu-Goldstone bosons in QCD abnormally light in comparison? This presentation will describe analyses of the mass budget of the pion and proton in QCD; discuss the special role of the kaon, which lies near the boundary between dominance of Higgs- and strong-mass generation mechanisms; and explain the need for a coherent effort in QCD experiment, phenomenology and theory to make progress in understanding the origins of hadron masses and the distribution of that mass within them.
Primary author
Dr
Craig Roberts
(Argonne)
