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

S.V. Goloskokov

doi:doi:10.1007/s100529900182

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2024 Impact factor 4.8

Particles and Fields

Eur. Phys. J. C 11, 309-316
DOI 10.1007/s100529900182

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

S.V. Goloskokov

Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia

Received: 27 April 1999 / Revised version: 29 June 1999 / Published online: 14 October 1999

Abstract
We calculate the cross section and A_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.