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

W. -D. Nowak; O. Teryaev; A. Tkabladze

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

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: W. -D. Nowak , O. Teryaev , A. Tkabladze

Abstract

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.

Keywords

double spin asymmetries charmonium factorization approach polarized gluon distribution HERA

Cite

@article{arxiv.hep-ph/9711290,
  title  = {Double Spin Asymmetries in Charmonium Hadroproduction at HERA-$\vec N$},
  author = {W. -D. Nowak and O. Teryaev and A. Tkabladze},
  journal= {arXiv preprint arXiv:hep-ph/9711290},
  year   = {2007}
}

Comments

10 pages, LaTeX, with 11 eps figs included with epsfig.sty; Invited talk presented at the Topical Workshop 'Deep Inelastic Scattering off Polarized Targets: Theory Meets Experiment', DESY-Zeuthen, September 1-5, 1997

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

Abstract

Keywords

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