Single Spin Asymmetries in Heavy Quark and Antiquark Productions

Details Single Spin Asymmetries in Heavy Quark and Antiquark Productions Single Spin Asymmetries in Heavy Quark and Antiquark Productions

2008-06-11

arxiv.org/abs/0806.1932v1

Phys.Lett.B668:216-220,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures

Scientific paper

10.1016/j.physletb.2008.08.045

The single transverse spin asymmetries in heavy quark and anti-quark production from the quark-antiquark annihilation channel contribution is studied by taking into account the initial and final state interactions effects. Because of the different color charges, the final state interaction effects lead to about a factor of 3 difference in the spin asymmetry for heavy quark over that for the anti-quark in the valence region of low energy pp collisions. The experimental study of this model-independent prediction shall provide a crucial test for the underlying mechanism for the single spin asymmetry phenomena.

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