Recent progress in the understanding of single spin asymme - tries
نویسنده
چکیده
Over the past years a lot of progress has been made in the understanding of single spin asymmetries in hard scattering processes. We briefly review this subject, covering the non-vanishing of time-reversal odd parton distributions, universality of fragmentation functions, and the discovery of previously unknown timereversal odd parton distributions at subleading twist. Interestingly enough, all these developments were initiated by simple model calculations.
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تاریخ انتشار 2004