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arXiv · hep-ph/9612301

Double-Spin Asymmetry of J/psi Production in Polarized pp Collisions at HERA-$\vec N$

Oleg Teryaev·Avto Tkabladze
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Abstract

We calculated the color-octet contribution to the double spin asymmetry of $J/ψ$ hadroproduction with nonzero transverse momenta at fixed target energies $\sqrt{s}\simeq40$ GeV. It is shown that the color-octet contribution is dominant in the asymmetries. The expected asymmetries and statistical errors in a future option of HERA with longitudinally polarized protons at HERA-$\vec N$ should allow one to distinguish between different parametrizations for the polarized gluon distribution in the proton.

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Oleg Teryaev, Avto Tkabladze. 1997-01-28. Double-Spin Asymmetry of J/psi Production in Polarized pp Collisions at HERA-$\vec N$. https://doi.org/10.1103/physrevd.56.7331

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