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Transverse Single Spin Asymmetries and Charmonium Production

High Energy Physics - Phenomenology 2015-06-17 v1
Authors: 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↑→J/ψ+Xe+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 Q2Q^2 - evolution was implemented only through DGLAP evolution of unpolarized gluon densities.

Keywords

transverse single spin asymmetry charmonium production color evaporation model Sivers function TMD evolution DGLAP evolution

Cite

@article{arxiv.1310.0752,
  title  = {Transverse Single Spin Asymmetries and Charmonium Production},
  author = {Rohini M. Godbole and Anuradha Misra and Asmita Mukherjee and Vaibhav S. Rawoot},
  journal= {arXiv preprint arXiv:1310.0752},
  year   = {2015}
}

Comments

Proceedings of Light Cone 2012, New Delhi, India

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