[Cuga] **Reminder** GSPDA Lunch Seminar - Wednesday, October 23

[Jodi Patient]

Jefferson Lab's Graduate Student and Post-Doc Association Wiki:

                                  https://gspda.jlab.org/wiki/index.php/Main_Page

This program is supported by the Initiatives Fund Program, a JSA commitment, to
support programs, initiatives, and activities that further the scientific outreach, promote
the science, education and technology of Jefferson Lab and benefit the Lab's extended
user community in ways that complement the Lab's basic and applied research missions.



                                                             Wednesday, October 23, 2024

                                                                         ***F324/325***

                                                                          12:00 - 1:00 pm

"The CLAS12 experiment at Jefferson Lab: a new view on the structure and spectrum of hadrons"

                                                                         Raffaella De Vita


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 transition between the elementary constituents,
quarks and gluons, and baryons and mesons occurs.
The CLAS12 spectrometer in Hall B at Jefferson Lab has been designed to investigate the spectrum and
structure of hadrons, making use of the high-intensity and high-polarization electron beam provided by the
CEBAF accelerator. After completing the commissioning run and engineering run in 2017-2018, CLAS12
entered the production phase, starting a multi-year program to provide definitive answers to these open questions.



(lunch will be provided)

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