Inclusive Measurements of Inelastic Electron and Positron Scattering from Unpolarized Hydrogen and Deuterium Targets

Abstract

Results of inclusive measurements of inelastic electron and positron scattering from unpolarized protons and deuterons at the HERMES experiment are presented. The structure functions $F_2^p$ and $F_2^d$ are determined using a parameterization of existing data for the longitudinal-to-transverse virtual-photon absorption cross-section ratio. The HERMES results provide data in the ranges $0.006\le x\le 0.9$ and 0.1 GeV${}^2\le Q^2\le$ 20 GeV${}^2$, covering the transition region between the perturbative and the non-perturbative regimes of QCD in a so-far largely unexplored kinematic region. They are in agreement with existing world data in the region of overlap. The measured cross sections are used, in combination with data from other experiments, to perform fits to the photon-nucleon cross section using the functional form of the ALLM model. The deuteron-to-proton cross-section ratio is also determined.

38 pages, 11 Figures, 9 Tables; Fig. 9 modified, Ref. [46] added, minor textual additions on pages 12 and 17

References in corpus (5)

• Combined Measurement and QCD Analysis of the Inclusive ep Scattering Cross Sections at HERA
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Applications of quark-hadron duality in F2 structure function
• The proton and deuteron F_2 structure function at low Q^2
• The proton structure function F2 with CLAS

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