Abstract
Systematics and phenomenology of boson mass levels are presented assuming certain characteristics of the ur-baryon dynamics. Considering that the constructive forces that bind the ur-baryon pair in the 0-- and 1-- nonets play a dominant role for the ur-baryon pair system which L ≠ 0 (but fairly small L), we are generally led to expect, as the next low lying excited system, the existence of 0+-, 1+- and 2+- nonets (3PJ) and 1+′- nonets (1P1), where the latter is the so-called abnormal axial vector. Comparison between the present experimental situation and our results will be made in detail. It is further shown that the lower bound of the average ur-baryon mass is ∼ 4.5 Bev. Finally applicability of our results to various ur-baryon models will be mentioned.

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