BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:David Dean\, Jefferson Laboratory\n\n
Nuclei make up 99% of the mass in the visible universe\, and all but the lightest nuclei are produced in ca taclysmic stellar events such as supernova explosions and neutron star mer gers. Every proton (and neutron) within all nuclei is governed by QCD\, th e theory of quarks\, gluons\, and their interactions. Understanding the am azing world inside a proton requires tremendous technical capabilities emb odied in large accelerator facilities and advanced detector technology\, a s found at the world-class facilities of Jefferson Laboratory. These capab ilities enable us to understand how QCD supports the dynamical generation of bound states with a rich variety as seen from data. Interestingly\, the more closely one peers into a proton (with higher-energy electrons)\, the more complex the emergent phenomena one measures. Tying these measurement s to theory often requires models informed by LQCD calculations. Furthermo re\, JLab&rsquo\;s experimental capabilities\, using parity violation\, ha ve recently enabled a precise measurement of the thickness of the neutron skin in Pb which has implications in the astrophysics associated with neut ron-star mergers. This interplay is but one demonstration of how the world of the small\, even at the proton level\, affects the most violent of col lisions in the universe.
\n DTSTART:20230120T203000Z LOCATION:Clark Hall\, Room 108 SUMMARY:Science at Jefferson Laboratory: The amazing world of quarks and gl uons END:VEVENT END:VCALENDAR