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

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.

9 pages, 2 figures; added Appendix B with the power corrections to xG and xh cos(2 phi)

References in corpus (4)

• Universality of Unintegrated Gluon Distributions at small x
• Relations between generalized and transverse momentum dependent parton distributions
• Direct Probes of Linearly Polarized Gluons inside Unpolarized Hadrons
• Quark pair production in high energy pA collisions: General features

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• Jet-based measurements of Sivers and Collins asymmetries at the future Electron-Ion Collider
• Interplay of the CGC and TMD frameworks to all orders in kinematic twist
• Low $x$ physics as an infinite twist (G)TMD framework: unravelling the origins of saturation
• Jets as precision probes in electron-nucleus collisions at the Electron-Ion Collider
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• When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the two-gluon correlation function in high-energy collisions
• Charm jets as a probe for strangeness at the future Electron-Ion Collider
• On gauge invariance of transverse momentum dependent distributions at small x
• Harmonics of Parton Saturation in Lepton-Jet Correlations at the EIC
• Sub-femtometer scale color charge correlations in the proton
• Particle correlations from the initial state
• Incoherent diffractive dijet production in electron DIS off nuclei at high energy
• The suppressions of dijet azimuthal correlations in the future EIC
• Incoherent diffractive dijet production and gluon Bose enhancement in the nuclear wave function
• The Weizsäcker-Williams distribution of linearly polarized gluons (and its fluctuations) at small x
• Probing Gluon Bose Correlations in Nuclear Wave Function in Deep Inelastic Scattering