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A covariant spectator constituent quark model is applied to study the gamma N-> Delta(1600) transition. Two processes are important in the transition: aphoton couples to the individual quarks of the Delta(1600) core (quark core),and a photon couples to the intermediate pion-baryon states (pion cloud). Whilethe quark core contributions are estimated assuming Delta(1600) as the firstradial excitation of Delta(1232), the pion cloud contributions are estimatedbased on an analogy with the gamma N -> Delta(1232) transition. To estimate thepion cloud contributions in the gamma N -> Delta(1600) transition, we includethe relevant intermediate states, pi-N, pi-Delta, pi-N(1440) andpi-Delta(1600). Dependence on the four-momentum transfer squared, Q2, ispredicted for the magnetic dipole transition form factor, GM*(Q2), as well asthe helicity amplitudes, A_1/2(Q2) and A_3/2(Q2). The results at Q2=0 arecompared with the existing data.

A model for the Delta(1600) resonance and gamma N -> Delta(1600) transition