General Treatment of the Multiple Factorizations in the Dual Resonance Models; the N -Reggeon Amplitudes
Loh-ping Yu · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 1970
The author presents a compact way of carrying out repeated factorizations on the dual amplitude. Prescriptions are given for writing down the multiply-factorized tree amplitudes. As an application of the prescriptions, the $N$-Reggeon amplitude is derived.