Experimental failure of shortest-path technique in inelastic partial wave analysis

Resonance Pole withJP=32+in a Coupled-Channel Analysis ofArndt1, Hackman2, Roper3 et al. 1974Phys. Rev. Lett.

“…This is due in part to the difficulty of detecting the effects of a broad inelastic resonance on the Argand plane 2 and to the uncertainties associated with the procedure of "shortest-path" detection as recently pointed out by Dean, Jensen, and Long. 3 In the analysis described in this report, each partial-wave amplitude is parametrized as an analytic function of energy through a two-channel If-matrix formalism. It was hoped that the analytic nature of the representation would answer the criticism of Dean and Lee.…”