Evidences from exp. data for an important role of MB↔MMB & MMB↔MMB processes CLAS data on yields of various meson electroproduction channels (Q2<4.0 GeV2) Cross sections of exclusive Np reactions W (GeV) Np/Npp channels are strongly coupled by FSI. They affect all excvlusive meson production channels Np/Npp channels are major contributors to photo electro and hadro production

MB↔ MMB & MMB↔ MMB processes in the EBAC-DCC approach the EBAC-DCC model for the first time provided explicit description of these processes, employing MB-diagrams derived from effective Lagrangians model consistently accounts for restrictions imposed by unitarity These advantages are important for N* parameter extraction, in particular, from multi- meson (photo) electroproduction channels. Analysis of the CLAS data on Np , Npp,Nh, KY (photo) electroproduction off protons within the framework of the EBAC-DCC approach is needed for full access to COMPLEX N* electrocouplings and hadr. parameters of various excited proton states at Q2<5.0 GeV2 A.Matsuyama et al., Phys. Rept. 439, 193 (2007) N.Suzuki et al., Phys. Rev. C82, 045206 (2010)

Npp electroproduction mechanisms determined from the CLAS data analysis within the framework of JM meson-baryon model differential cross sections/amplitudes for isobar channels: A joint Hall B-EBAC effort is being made to use these results to improve reaction models and extend/interpret within EBAC-DCC model the information on N* parameters extracted by Hall B in independent analyses of major Np and Npp channels p-D++ p+D0 and for direct Npp production are available. will be available soon for: rp, p+D13(1520), p+F15(1685), p-P33(1600) isobar channels W=1.51 GeV Q2=0.43 GeV2 V.I.Mokeev et al., Phys. Rev. C80, 045212 (2009)