Abstract
A review of various approaches to the problem of the proton spin is presented. Arguments are given in favor of the idea that the answer to the “spin crisis” is to be found in fundamental nonperturbative properties of the QCD vacuum.
1993
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A review of various approaches to the problem of the proton spin is presented. Arguments are given in favor of the idea that the answer to the “spin crisis” is to be found in fundamental nonperturbative properties of the QCD vacuum.