Deep inelastic scattering and prompt photon production within the framework of quark Reggeization hypothesis

TL;DR

This paper investigates deep inelastic scattering and prompt photon production using the quark Reggeization hypothesis, successfully describing experimental data without free parameters within a specific theoretical framework.

Contribution

It introduces a novel application of the quark Reggeization hypothesis to describe structure functions and prompt photon production in high-energy collisions.

Findings

Accurately describes structure functions F_2 and F_L.

Reproduces photon transverse momentum spectra from collider data.

Validates the quark Reggeization approach without free parameters.

Abstract

We study ep deep inelastic scattering and the inclusive production of prompt photon within the framework of the quasi-multi-Regge-kinematic approach, applying the quark Reggeization hypothesis. We describe structure functions F_2 and F_L supposing that a virtual photon scatters on a Reggeized quark from a proton, via the effective gamma-Reggeon-quark vertex. It is shown that the main mechanism of the inclusive prompt photon production in p \bar p collisions is the fusion of a Reggeized quark and a Reggeized antiquark into a photon, via the effective Regeon-Reggeon-gamma vertex. We describe the inclusive photon transverse momentum spectra measured by the CDF and D0 Collaborations within errors and without free parameters, using the Kimber-Martin-Ryskin unintegrated quark and gluon distribution functions in a proton.