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

A.V. Vinnikov; D.-P. Min; N.I. Kochelev; V. Vento

arxiv: hep-ph/0112292 · v2 · submitted 2001-12-21 · ✦ hep-ph

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

N.I. Kochelev , D.-P. Min , V. Vento , A.V. Vinnikov This is my paper

classification ✦ hep-ph

keywords double-spinasymmetryelectromagneticexchangeshermesmesonparityproduction

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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.

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

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