Spin effects in diffractive J/ $\Psi$ leptoproduction and the structure of Pomeron coupling

Abstract

We calculate the cross section and \(A_{\mathrm{ll}}\) asymmetry of the diffractive J/\(\Psi\) leptoproduction for a simple model of a Pomeron coupling with a proton, which contains the \(\gamma^{\alpha}\) term and a spin-dependent part. It is shown that the asymmetry caused by the Pomeron coupling \(\propto \gamma^{\alpha}\) does not vanish for nonzero \(|t|\). The sensitivity of the polarized diffractive J/\(\Psi\) production to the spin-dependent part of the Pomeron coupling is found to be rather weak. As a result, it is difficult to study the structure of the Pomeron coupling with the proton in future polarized diffractive experiments on the J/\(\Psi\) production.