E. Santopinto1,2 - F. Iachello1 - M.M. Giannini2
1 Center for Theoretical Physics, Sloane Laboratory, Yale
University, New Haven, CT 06520-8120, U.S.A
2 Dipartimento di Fisica dell'Università di Genova, I.N.F.N., Sezione di Genova, via Dodecaneso 33, 16164 Genova, Italy (e-mail:email@example.com)
Received: 15 November 1997 Communicated by V.V. Anisovich
We construct a simple 3-body quark model for the non strange nucleon resonances and we give results for the spectrum, the helicity amplitudes and the transition form factors. All the observables, in particular the transition form factors, are evaluated analytically and the results are compared with those of other models.
12.39.Jh Nonrelativistic quark model - 13.40.Gp Electromagnetic form factors - 14.20.Gk Baryon resonances with S = 0 Protons and neutrons