The helicity amplitudes of the electroexcitation of the Roper resonance are extracted for 1.7
Physical Review C
Aznauryan, I. G.; Biselli, Angela; and CLAS Collaboration, "Electroexcitation of the Roper resonance for 1.7" (2008). Physics Faculty Publications. 58.
I. G. Aznauryan et al. [CLAS Collaboration], "Electroexcitation of the Roper resonance for 1.7