The Institute of Nuclear and Particle Physics (INPP) presents Dipangkar Dutta, of Mississippi State University, on “Electrons With A Twist: A New tool for Nuclear Physics” on Tuesday, Nov. 7, at 4 p.m. in Edwards Accelerator Lab, Roger W. Finlay Conference Room.
Dipangkar Dutta
Abstract: The recent demonstration of electron beams carrying quantized orbital angular momentum (OAM), provides a new and unexplored degree of freedom for use in nuclear and particle physics. For example, these so called vortex or “twisted” beams could be used to probe the origin of the proton’s spin, such as, the contribution due to the orbital angular momentum of quarks and gluons in the proton.
We will discuss how vortex electrons carry OAM and how they are generated, and possible scattering observables to monitor their twistedness? We will also discuss efforts underway at Jefferson Lab (JLab) to develop a new vortex electron sources which will use Mott scattering to monitor its twistedness. This effort also seeks to verify if the OAM is preserved when the vortex electrons are accelerated. If successful it could lead to high energy electron beams carrying quantized OAM and open up a new frontier in nuclear physics.
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