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arXiv · 0901.2763

pi^0 Transverse Single-Spin Asymmetries at eta=4.1 in p+p Collisions at sqrt{s}=200 GeV

J. L. Drachenberg
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Abstract

Large transverse single-spin asymmetries, A_{N}, have been observed in forward hadron production at RHIC. STAR has reported precision measurements of the x_{F}-p_{T} dependence of A_{N} for forward pi^0 production. Contrary to expectation, the asymmetry does not fall with p_{T}. However, questions remain about the trend at the lower end of the studied range, p_{T}~1 GeV/c. Analysis of data from the 2008 RHIC run has extended the pi^0 data in the x_{F} > 0.4, low p_{T} region. Preliminary results are reported.

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J. L. Drachenberg. 2009-01-19. pi^0 Transverse Single-Spin Asymmetries at eta=4.1 in p+p Collisions at sqrt{s}=200 GeV. https://doi.org/10.1063/1.3215702

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