The Form Factors of the Nucleon
Seminars
VBLHEP Specialized Seminar
A.M.Baldin Relativistic nuclear physics and polarization phenomena
#755
Date and Time: Wednesday, 23 November 2016, at 11:00 AM
Venue: Big Conference Hall (bld. 215), Veksler and Baldin Laboratory of High Energy Physics
Seminar topic: «The Form Factors of the Nucleon»
Speaker: Charles F. Perdrisat (College of William and Mary, Williamsburg, Virginia, USA)
Abstract:
A series of experiments initiated in 1998 at the Continuous Electron Beam Accelerator in Newport News, Virginia, resulted in unexpected results, changing significantly our understanding of the structure of the proton. These experiments used a relatively new technique to obtain the ratio of the two elastic form factors of the proton, namely polarization.
The results demonstrated that the two form factors required to describe elastic ep-scattering, electric GE and magnetic GM, in the Born approximation, had a drastically different dependence upon the four-momentum transfer squared, Q2. The conclusion will be a brief outline of theoretical considerations to put the results in a proper perspective.