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Seminar | Physics Division

The nucleon 3D spin-structure program at CLAS12

MEP Seminar

In recent years, it has been realized that hadron lepto-production in semi-inclusive and hard exclusive deep-inelastic scattering off nuclear targets, provide a variety of spin and azimuthalangle-dependent observables sensitive to the dynamics of quark-gluon interactions. New parton distributions and fragmentation functions have been introduced to describe the rich complexity of the hadron structure and move towards multi-dimensional imaging of the underlying parton correlations. Besides the hard probe scale, these functions explicitly depend on the parton transverse degrees of freedom at the scale of confinement and therefore promise to open an unprecedented gateway to the unique dynamics of the strongly interacting force. This work presents a selection of available observations and upcoming measurements planned at CLAS12 to address the mysteries of the nucleon structure from a modern point of view.