Izlaganje sa skupa
Chromodynamic lensing and ⊥ single spin asymmetries
M. Burkardt
; Department of Physics, New Mexico State University, Las Cruces, NM 88003, U.S.A.
Sažetak
The physical interpretation of generalized parton distributions (in the limit ξ = 0) as Fourier transforms of impact parameter dependent parton distributions is discussed. Particular emphasis is put on the role of the target polarization. For transversely polarized targets, we expect a significant deviation from axial symmetry for the distribution in the transverse plane. We conjecture that this transverse distortion, in combination with the final state, provides a natural explanation for the sign of the Sivers contribution to semi-inclusive single-spin asymmetries.
Ključne riječi
Sivers effect; generalized parton distributions
Hrčak ID:
305884
URI
Datum izdavanja:
1.6.2004.
Posjeta: 260 *