Adler zero and the dual multiperipheral model
Louis A. P. Balázs · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 1978
We show that the $\ensuremath{\pi}\ensuremath{\pi}\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\pi}$ Adler PCAC (partial conservation of axial-vector current) condition requires a Reggeon intercept $\ensuremath{\alpha}(0)\ensuremath{\approx}0.5$ within a broad class of multiperipheral models at the planar and cylinder levels. In the planar approximation this is closely related to the cancellation of the Reggeon-Reggeon cut.