New Results from the Studies of the $N(1440)1/2^+$, $N(1520)3/2^-$, and $��(1620)1/2^-$ Resonances in Exclusive $ep \to e'p' ��^+ ��^-$ Electroproduction with the CLAS Detector

The transition helicity amplitudes from the proton ground state to the $N(1440)1/2^+$, $N(1520)3/2^-$, and $��(1620)1/2^-$ resonances ($��_vpN^*$ electrocouplings) were determined from the analysis of nine independent one-fold differential $��^+ ��^- p$ electroproduction cross sections off a proton target, taken with CLAS at photon virtualities 0.5 GeV$^2$ $< Q^2
the paper submitted to Phys. Rev. C, the updated version in response to the referee comments, fixing typo. extension of the previous work published in arXiv:1205.3948