Low Energy Electron Positron Physics at Jefferson Lab

Test of Weizsaker - Williams method using Compton scattering from atomic electron

Not scheduled

20m

F113 (CEBAF CENTER)

Speakers

Prof. Ashot Gasparian (NCAT) Bogdan Wojtsekhowski (Jefferson Lab)

Description

The 100-year old theory proposed by E. Fermi and further developed by Weizsaker and Williams can be tested by using Compton scattering of quasi-real photons from atomic electrons.Currently known tests have a few percent accuracy which could be improved by at least a factor of 10. The proposed experiment will use an H(e, e_1 + e_2 + \gamma) reaction with selection of the events with the elastic \gamma - electron scattering kinematics. The proposed detector system will use the existing PRad-II experimental setup, including the HyCal calorimeter and GEM coordinate detectors.