Cut contributions in the triple-pomeron limit
Nuclear Physics, Section B 56:2 (1973) 605-612
Abstract:
We investigate pomeron cut contributions in the triple-pomeron limit of one-particle inclusive cross sections, near t = 0 where the triple-pole coupling vanishes. We find that at t = 0 the cuts themselves are suppressed, contributing factors (lnM2)-2, rather than the single logarithms characteristic of cut contributions in two-body processes. We construct a simple reggeon calculus model in which all important cuts near t = 0 can be calculated, and suggest a simple way of parametrizing the data in that region. © 1973.Wide angle scattering in quantum electrodynamics
Nuclear Physics, Section B 33:1 (1971) 139-151
Abstract:
We study high energy elastic electron-electron scattering at wide angles in quantum electrodynamics. The amplitude is predicted to decrease exponentially with increasing energy, in agreement with strong interaction data. © 1969.A reggeon calculus derived from the eikonal model
Nuclear Physics, Section B 28:2 (1971) 455-476
Abstract:
A reggeon calculus is derived from a hybrid perturbation-theory model using eikonal techniques. The resulting reggeon coupling functions have a simple form which enables many diagrams of interest to be evaluated explicitly. As an example, the properties of iterated Regge cuts are discussed and evaluated. Another important result is that the physical pomeron is not expected to have factorisable residues. © 1969.Extension of the eikonal approximation in quantum field theory
Nuclear Physics, Section B 28:2 (1971) 477-494
Abstract:
The eikonal approximation is extended to arbitrary Feynman diagrams, in a renormalised spinless theory. A set of rules is formulated, which gives the eikonal expression for any given set of diagrams. Features reminiscent of a parton model emerge. © 1969.High-energy behaviour at fixed angle in perturbation theory
Nuclear Physics, Section B 17:3 (1970) 493-514