The Nucleon Spin Crisis Bible

F. E. Close

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arXiv · hep-ph/9306288

The Nucleon Spin Crisis Bible

F. E. Close

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Abstract

When the new data on polarised lepton nucleon scattering are compared at the same value of $Q^2$ and with a common set of assumptions, a consistent picture of the spin content of the nucleon begins to emerge. Higher order effects in $0(α_s)$, higher twist effects, modern data on unpolarised structure functions and an updated value for F/D are all important in analysing the data. The detailed x dependences of the polarisation asymmetry in the valence quark region are shown to confirm 20 year old predictions of the quark model and I argue that these are an important ingredient in decoding the nucleon spin puzzle.

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F. E. Close. 1993-06-18. The Nucleon Spin Crisis Bible. https://arxiv.org/abs/hep-ph/9306288

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