Urbaryon Rearrangement and Inelastic Two-Body Processes

Akizo Kobayashi
1972 Progress of theoretical physics  
It has been shown that the characteristic features of the hadron reaction can be explained from the standpoint of urbaryon rearrangement. 1 > In this note, based on the properties of urbaryon rearrangement diagram (URD), we investigate the non-vanishing polarization and the breaking of line reversal relation (BLRR) in the differential cross section for inelastic two-body processes. The exchange degeneracy hypothesis for the Regge Pole model predicts the equality of differential cross section
more » ... al cross section and the vanishing polarization for the line reversed inelastic processes. But these line reversal relations are known to disagree with experiment. The BLRR cannot be explained within the pole dominance framework. 2 > Even the Pomeron-Reggeon cut model does not correctly describe the observed BLRR until the drastic violation of the duality rules is introduced. Also the ob-served non-zero-polarizations in 1t-p~1r 0 n and 7t-p~7Jn are well-known difficulties of the Regge Pole model. Here introducing .Z-type diagrams we show the possibility to construct a required model which gives the consistent results between the above-mentioned experimental facts and the success in the duality arguments of elastic processes. Meson baryon two-body scatterings are described by D-, X-, Hand Z-type URD as shown in Ref. 1). The URD are distinguished by symmetric quark pair and anti-symmetric quark pair in unitary space. 3 > In meson baryon scattering there appear two independent H(X) type diagrams, H1 (X1) and H 2 (X2). For Z type there exist three independent diagrams z, (i= 1, 2, 5) in unitary space considering time reversal invariance as shown in Fig.
doi:10.1143/ptp.47.1779 fatcat:45ggxl3h5jarvfc2bkgkdom7im