A mechanism for the Double-Spin Asymmetry in Electromagnetic $\rho$ Production at HERMES

Abstract

We calculate the contribution of meson and pomeron exchanges to the double-spin asymmetry in $\rho$-meson electromagnetic production at HERMES energies. We show that the observed double-spin asymmetries, which are large, can be explained by the interference between the natural parity $f_2$-secondary Reggeon and the unnatural parity anomalous $f_1$ exchanges.

arXiv comment7 pages, 3 figures, Latex

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Cited by in corpus (3)

• Leading-Order Determination of the Gluon Polarization from high-$p_T$ Hadron Electroproduction
• Spin effects and baryon resonance dynamics in phi-meson photoproduction at few GeV
• DIS structure functions and the double-spin asymmetry in ${\rho }^0$ electroproduction within a Regge approach