N/D analysis of 1D2 diproton through coupled pp, π+d and Nδ channels

Dinucleon resonance at pp (1D2) state is analysed by means of the three-channel N/D formalism with couplings among pp, pi d and N delta channels. The Glauber model amplitudes are used as an input to pi d elastic amplitude in addition to the input so far used such as the empirical pp elastic amplitude, etc. Most probable solution seems that Argand plots of both pp and pi d elastic amplitudes show local counterclockwise circles. The radius of Argand circle of pi d amplitude is larger than that of pp amplitude. Resultant amplitude of N delta elastic channel shows a possibility that 1D2 resonance is generated through an N delta bound state. (author)