Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data

A phenomenological study of the final combined HERA data on inclusive deep inelastic scattering has been performed. The data are presented and investigated for a kinematic range extending from values of the four-momentum transfer, Q2, above 104 GeV2 down to the lowest values observable at HERA of Q2...

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Main Authors: Abt, I, Cooper-Sarkar, AM, Foster, B, Myronenko, V, Wichmann, K, Wing, M
Format: Journal article
Published: American Physical Society 2017
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author Abt, I
Cooper-Sarkar, AM
Foster, B
Myronenko, V
Wichmann, K
Wing, M
author_facet Abt, I
Cooper-Sarkar, AM
Foster, B
Myronenko, V
Wichmann, K
Wing, M
author_sort Abt, I
collection OXFORD
description A phenomenological study of the final combined HERA data on inclusive deep inelastic scattering has been performed. The data are presented and investigated for a kinematic range extending from values of the four-momentum transfer, Q2, above 104 GeV2 down to the lowest values observable at HERA of Q2=0.045 GeV2 and Bjorken x, xBj=6×10-7. The data are well described by fits based on perturbative quantum chromodynamics (QCD) using collinear factorisation and evolution of the parton densities encompassed in the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi formalism from the highest Q2 down to Q2 of a few GeV2. The Regge formalism with the soft Pomeron pole can describe the data up to Q2≈0.65 GeV2. The complete data set can be described by a new fit using the Abramowicz-Levin-Levy-Maor parametrization. The region between the Regge and the perturbative QCD regimes is of particular interest.
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spelling oxford-uuid:fcd28fe9-ae1d-484e-8fb3-ff4d6fa0549e2022-03-27T13:23:57ZInvestigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering dataJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fcd28fe9-ae1d-484e-8fb3-ff4d6fa0549eSymplectic Elements at OxfordAmerican Physical Society2017Abt, ICooper-Sarkar, AMFoster, BMyronenko, VWichmann, KWing, MA phenomenological study of the final combined HERA data on inclusive deep inelastic scattering has been performed. The data are presented and investigated for a kinematic range extending from values of the four-momentum transfer, Q2, above 104 GeV2 down to the lowest values observable at HERA of Q2=0.045 GeV2 and Bjorken x, xBj=6×10-7. The data are well described by fits based on perturbative quantum chromodynamics (QCD) using collinear factorisation and evolution of the parton densities encompassed in the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi formalism from the highest Q2 down to Q2 of a few GeV2. The Regge formalism with the soft Pomeron pole can describe the data up to Q2≈0.65 GeV2. The complete data set can be described by a new fit using the Abramowicz-Levin-Levy-Maor parametrization. The region between the Regge and the perturbative QCD regimes is of particular interest.
spellingShingle Abt, I
Cooper-Sarkar, AM
Foster, B
Myronenko, V
Wichmann, K
Wing, M
Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data
title Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data
title_full Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data
title_fullStr Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data
title_full_unstemmed Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data
title_short Investigation into the limits of perturbation theory at low Q2 using HERA deep inelastic scattering data
title_sort investigation into the limits of perturbation theory at low q2 using hera deep inelastic scattering data
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