Transverse polarization distribution and fragmentation functions

Details Transverse polarization distribution and fragmentation functions Transverse polarization distribution and fragmentation functions

1999-12-11

arxiv.org/abs/hep-ph/9912311v2

RIKEN Rev.28:26-30,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Latex, 7 Postscript figures; Invited talk given at the Circum-Pan-Pacific RIKEN Symposium on ``High Energy Spin Physi

Scientific paper

We discuss transverse polarization distribution and fragmentation functions, in particular, T-odd functions with transverse momentum dependence, which might be relevant for the description of single transverse spin asymmetries. The role of intrinsic tranverse momentum in the expansion in inverse powers of the hard scale is elaborated upon. The sin(phi) single spin asymmetry in the process e \vec{p} -> e' pi^+ X as recently reported by the HERMES Collaboration is investigated, in particular, by using the bag model.

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