Single Transverse-Spin Asymmetry in Large Open Charm Production at an Electron-Ion Collider
arXiv:1204.1592 · doi:10.1103/PhysRevD.85.114026
Abstract
We discuss the single transverse-spin asymmetry (SSA) to be observed in the -meson production with large transverse-momentum in semi-inclusive deep inelastic scattering, . This contribution is embodied as a twist-3 mechanism in the collinear factorization, which is induced by purely gluonic correlation inside the transversely-polarized nucleon, in particular, by the three-gluon correlation effects. The complete formula for the corresponding SSA in the leading-order QCD is expressed in terms of the four independent gluonic correlation functions and reveals the five independent structures with respect to the dependence on the azimuthal angle for the produced -meson. We present the numerical calculations of the SSA formula at the kinematics relevant to a future Electron Ion Collider.
16 pages, 7 figures
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Cited by in corpus (4)
- Contribution of twist-3 fragmentation function to single transverse-spin asymmetry in semi-inclusive deep inelastic scattering
- Three-gluon contribution to the single spin asymmetry for light hadron production in pp collision
- Single transverse-spin asymmetry for direct-photon and single-jet productions at RHIC
- The twist-3 gluon contribution to Sivers asymmetry in production in semi-inclusive deep inelastic scattering