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Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Nucleon helicity structure (F. Kunne, W. Melnitchouk and B. Page)
The Non-Existence of the Proton Spin Crisis
E. Leader
Full text: pdf
Pre-published on: 2019 August 19
Published on: 2019 August 23
The spin crisis arose some 30 years ago following results of a European Muon Collaboration experiment on polarized DIS. Since then many people have pointed out that the arguments involved are too naive, yet papers continue to appear devoted to "the spin crisis". We explain the subtleties involved in giving a precise statement of the spin sum rule and clarify why there is really no crisis.
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