10-12 April 2019
Denver, CO
US/Mountain timezone
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Contribution invited talk

Denver, CO - Director's Row E

Exploring the origin of mass through the properties of pseudoscalar mesons


  • Dr. Craig ROBERTS

Primary authors


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.