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arXiv · 1310.0752

Transverse Single Spin Asymmetries and Charmonium Production

Rohini M. Godbole·Anuradha Misra·Asmita Mukherjee·Vaibhav S. Rawoot
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Abstract

We estimate transverse spin single spin asymmetry(TSSA) in the process $e+p^\uparrow \to J/\psi +X$ using color evaporation model of charmonium production. We take into account transverse momentum dependent(TMD) evolution of Sivers function and parton distribution function and show that the there is a reduction in the asymmetry as compared to our earlier estimates wherein the $Q^2$ - evolution was implemented only through DGLAP evolution of unpolarized gluon densities.

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Rohini M. Godbole, Anuradha Misra, Asmita Mukherjee, Vaibhav S. Rawoot. 2013-10-02. Transverse Single Spin Asymmetries and Charmonium Production. https://doi.org/10.1016/j.nuclphysbps.2014.04.010

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