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arXiv · 1911.12055

Infrared renormalon effects in color dipole TMD PDF at small-$x$

Nahid Vasim·Raktim Abir
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Abstract

The uncertainties from the infrared renormalons in the (color dipole) gluon distribution is estimated. It is shown that non-linear saturation effects at small-$x$ shift the first IR pole at the Borel plane from $2/\beta_2$ to $1/\beta_2$. As a consequence the estimated uncertainty is found to be ${\cal O}\left(\Lambda_{\rm QCD}^2\right)$ instead of ${\cal O}\left(\Lambda_{\rm QCD}^4\right)$.

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Nahid Vasim, Raktim Abir. 2019-11-27. Infrared renormalon effects in color dipole TMD PDF at small-$x$. https://arxiv.org/abs/1911.12055

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