December 1, 2019 at 10:45 pm

Physics Colloquium | The CLAS12 Experiment: A New View on the Structure and Spectrum of Hadrons, Dec. 6

The Physics & Astronomy Colloquium Series presents Raffaella Devita of Instituto Nazionale di Fisica Nucleare (INFN), Genova, on “The CLAS12 Experiment: A New View on the Structure and Spectrum of Hadrons”, on Friday, Dec. 6, at 4:10 p.m. in Clippinger Labs 194.

Photo of Raffaella Devita

Raffaella Devita

Abstract: Understanding the hadron structure and spectrum is one of the fundamental issues in modern particle physics. We know that existing hadron configurations include baryons, made of three quarks, and mesons, made of quark-antiquark pairs. However most of the mass of the hadrons is not due to the mass of these elementary constituents but to the force that binds them. Studying the hadron spectrum and structure is therefore a tool to explore one of the fundamental forces in nature, the strong force, and Quantum Chromo Dynamics (QCD), the theory that describes it.

This investigation can provide an answer to fundamental questions as what is the origin of the mass of hadrons, what is the origin of quark confinement, what are the relevant degrees of freedom to describe these complex systems and how the transitions between baryons (and between mesons) occur. The CLAS12 detector has started a multi-year program with the aim of providing answers to these questions.

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