PhD project: Studying confinement in the light quark sector

Project description

In recent years theoretical and computational developments have made possible a direct link between the underlying theory of the strong interaction (QCD) and bound light quark systems for the first time. This opens up a rich hunting ground to not only test QCD as providing the detailed theory to describe the confinement processes but also to hunt for exotic beasts of QCD, which are predicted by the theory but remain unobserved. The existence, spectrum and nature of these particles are a fundamental test of QCD. The list include glueballs (particles made entirely from gluons) and hybrid mesons (in which the excited gluonic field inside the meson contributes to the meson's quantum numbers).

Our group is leading a major new experimental proposal which will run as the first experiment following the energy upgrade of Jefferson Lab (http://www.jlab.org (link is external)) in the USA. We will construct new apparatus to detect electrons scattered at very small angles from the electron beam. Coincident reaction products from the interaction of the electron beam in the target will be detected using the new CLAS12 spectrometer. We have shown that our experiment has discovery potential for these exotic beasts of QCD. The PhD project will be to the execution of this experiment and analysis of the new data.

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