A perturbative approach to the pomeron (I). The multifireball expansion

A perturbative description of the pomeron suggested by the two-component model of multiparticle production

“….we mention at this point some of the results of the solvable factorizable model alluded to above [7]. The pomeron pole residue and.…”

“…3a and 3b, and we will give -such an extension in a future publication [7]. We have a set of rules for the J-plane contribution of any diagram in terms of explicit Regge-poles and momentum transfer integrals .. We will discuss in detail a solvable model in which pomeron-particle-pomeron vertices factorize in the pomeron masses.…”

A perturbative approach to the pomeron (II). A simple model

“…The general ingredients of our approach, such as the classification of various multiparticle final states and the distinction between small and large mass fireballs, have been discussed previously [2], (3] ,and will not be repeated in any detail. We shall present…”

“…In section 2 we quote the complete solution for the absorptive rart obtained in the preceding raper [3] (hereafter referred to as I), and then motivate and apply some simplifying assumptions. The general properties of the leading singularities, the pomeron pole and two~ pomeron cut, are studied in section 3. In section 4 the Regge singularities of the full amplitude are examined in detail.…”