Testing Target Independence of the `Proton Spin' Effect in Semi-Inclusive Deep Inelastic Scattering

Abstract

A natural consequence of the composite operator propagator-vertex description of deep inelastic scattering developed by the authors is that the anomalous suppression observed in the flavour singlet contribution to the first moment of the polarised proton structure function $g_1^p$ (the `proton spin' problem) is not a special property of the proton structure but is a target independent effect which can be related to an anomalous suppression in the QCD topological susceptibility. In this paper, it is shown how this target independent mechanism can be tested in semi-inclusive deep inelastic scattering in which a pion or D meson carrying a large target energy fraction $z$ is detected in the target fragmentation region.

23 pages, TeX, includes 11 ps figures

References in corpus (1)

• The (alpha_s)^3 approximation of Quantum Chromodynamics to the Ellis-Jaffe sum rule

Cited by in corpus (11)

• The Spin Structure of the Proton
• Topological Charge Screening and the `Proton Spin' Beyond the Chiral Limit
• The role of the chiral anomaly in polarized deeply inelastic scattering II: Topological screening and transitions from emergent axion-like dynamics
• Spin Physics
• Fractional topological charge in $SU(N)$ gauge theories without dynamical quarks
• The Polarised Photon $g_1^{\gamma }$ Sum Rule at the Linear Collider and High Luminosity B Factories
• Quark Flavor Tagging in Polarized Hadronic Processes
• Target Fragmentation in Semi-Inclusive DIS: Fracture Functions, Cut Vertices and the OPE
• Quark distributions and gluon contents of eta and etaprime
• The U(1)_A Anomaly and QCD Phenomenology
• Fracture functions in the very forward limit