Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-10-31
Few Body Syst.50:435-437,2011
Physics
Nuclear Physics
Nuclear Theory
3 pages, 2 figures, Presented at the 21st European Conference on Few-Body Problems in Physics, Salamanca, Spain, 30 August - 3
Scientific paper
10.1007/s00601-010-0180-y
We discuss a Poincar\'e invariant coupled-channel formalism which is based on the point-form of relativistic quantum mechanics. Electromagnetic scattering of an electron by a 2-body bound state is treated as a 2-channel problem for a Bakamjian-Thomas-type mass operator. In this way retardation effects in the photon-exchange interaction are fully taken into account. The electromagnetic current of the 2-body bound state is then extracted from the one-photon-exchange optical potential. As an application we calculate electromagnetic pion and deuteron form factors. Wrong cluster properties, inherent in the Bakamjian-Thomas framework, are seen to cause spurious (unphysical) contributions in the current. These are separated and eliminated in an unambiguous way such that one is left with a current that has all the desired properties.
Biernat Elmar. P.
Klink William H.
Schweiger Wolfgang
No associations
LandOfFree
A relativistic coupled-channel formalism for electromagnetic form factors of 2-body bound states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A relativistic coupled-channel formalism for electromagnetic form factors of 2-body bound states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A relativistic coupled-channel formalism for electromagnetic form factors of 2-body bound states will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-663863