Time Reversal Invariance and the Transverse Spin Structure of Hadrons
نویسنده
چکیده
where s is the particle’s spin, sz its third component, and an irrelevant phase has been omitted. An important point, with far-reaching consequences, is that T maps “in” states into “out” states: T : |in〉 → |out〉. In what follows, we shall discuss the rôle that TR plays in the transverse spin structure of hadrons . Before entering into the subject, it is worth recalling that the implementation and the implications of TR invariance are sometimes rather subtle, as we are now going to show by a simple example .
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