Phenomenological Analysis of the γNN* Form Factors
Abstract
The data on electroexcitation of N* in the momentum-transfer range -q2=0.1-2.33 GeV2 have been analyzed phenomenologically, using an isobar model. Assuming only the M1 transition, we obtained a phenomenological form factor for the γNN* vertex. This form factor is found to decrease much faster than the elastic nucleon form factors. This implies that the N* has a larger spatial extension than the N.
- Publication:
-
Physical Review
- Pub Date:
- April 1968
- DOI:
- 10.1103/PhysRev.168.1801
- Bibcode:
- 1968PhRv..168.1801D