Eur. Phys. J. C (2020) 80: 774
https://doi.org/10.1140/epjc/s10052-020-8356-1

Regular Article - Theoretical Physics

Triple-pomeron amplitude in the effective action approach

Saint Petersburg State University, Saint Petersburg, Russia

^* e-mail: braun1@pobox.spbu.ru

Received: 16 June 2020
Accepted: 13 August 2020
Published online: 25 August 2020

Abstract

In the effective action approach the imaginary part of the triple pomeron amplitude is calculated. The found dependence on the longitudinal momentum transfer is found to separate as a simple factor . This result is used to calculate the high-mass diffraction on a hadron and double scattering cross-section off a composite target.