Proton-proton scattering above 3 GeV/c

TL;DR

This paper analyzes proton-proton scattering data above 3 GeV/c using Regge theory, successfully describing differential cross sections and polarization observables with a model involving specific trajectories and Pomeron exchange.

Contribution

It demonstrates that proton-proton scattering data from 3 to 50 GeV/c align well with Regge phenomenology using a model with rho, omega, f_2, a_2 trajectories, and Pomeron exchange.

Findings

Data fits well with Regge model

Model includes rho, omega, f_2, a_2 trajectories

Single Pomeron exchange explains observations

Abstract

A large set of data on proton-proton differential cross sections, analyzing powers and the double polarization parameter A_NN is analyzed employing the Regge formalism. We find that the data available at proton beam momenta from 3 GeV/c to 50 GeV/c exhibit features that are very well in line with the general characteristics of Regge phenomenology and can be described with a model that includes the rho, omega, f_2, and a_2 trajectories and single Pomeron exchange. Additional data, specifically for spin-dependent observables at forward angles, would be very helpful for testing and refining our Regge model.