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arXiv · 1605.02739

Cos(4 phi) azimuthal anisotropy in small-x DIS dijet production beyond the leading power TMD limit

Adrian Dumitru·Vladimir Skokov
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Abstract

We determine the first correction to the quadrupole operator in high-energy QCD beyond the TMD limit of Weizsaecker-Williams and linearly polarized gluon distributions. These functions give rise to isotropic resp. ~ cos 2 phi angular distributions in DIS dijet production. On the other hand, the correction produces a ~ cos 4 phi angular dependence which is suppressed by one additional power of the dijet transverse momentum scale (squared) P^2.

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Adrian Dumitru, Vladimir Skokov. 2016-05-09. Cos(4 phi) azimuthal anisotropy in small-x DIS dijet production beyond the leading power TMD limit. https://doi.org/10.1103/physrevd.94.014030

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