Double Spin Asymmetries in Charmonium Hadroproduction at HERA-$\vec N$

Details Double Spin Asymmetries in Charmonium Hadroproduction at HERA-$\vec N$ Double Spin Asymmetries in Charmonium Hadroproduction at HERA-$\vec N$

1997-11-11

arxiv.org/abs/hep-ph/9711290v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, with 11 eps figs included with epsfig.sty; Invited talk presented at the Topical Workshop 'Deep Inelastic Sca

Scientific paper

We discuss the double spin asymmetries in charmonium hadroproduction with nonzero transverse momenta at fixed target energies, $\sqrt{s}\simeq40$ GeV, within the framework of the factorization approach. It is shown that the color octet contribution is dominant in the asymmetries. The size of the asymmetries and the projected statistical errors in a future option of HERA with longitudinally polarized protons scattering off a polarized target (HERA-$\vec N$) should allow to distinguish between different parametrizations for the polarized gluon distribution in the proton.

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