Whole-region formula for single-particle distributions and two-body reactions at all angles

A formula for inclusive distributions ab →cX is proposed, which incorporates the large pT scaling with power fall-off in pT, the limiting behaviour in the fragmentation region and the approach from below to the Feynman scaling in the central region. By taking the exclusive limit X = d of the formula, the differential cross section for ab →cd at all angles is obtained, which exhibits both the fixed-angle scaling at large angles and the Regge-like behaviour at small angles. The parameters in the formula are determined by the bond numbers of urbaryon lines connecting a, b, c and X (or d). The formula is closely related to the structure functions of the colliding hadrons. Construction of the formula from certain factors assigned to urbaryon lines is suggested.