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arXiv · 1009.2141

kt-factorization for Hard Processes in Nuclei

Fabio Dominguez·Bo-Wen Xiao·Feng Yuan
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Abstract

Two widely proposed kt-dependent gluon distributions in the small-x saturation regime are investigated using two particle back-to-back correlations in high energy scattering processes. The Weizsacker-Williams gluon distribution, interpreted as the number density of gluon inside the nucleus, is studied in the quark-antiquark jet correlation in deep inelastic scattering. On the other hand, the unintegrated gluon distribution, defined as the Fourier transform of the color-dipole cross section, is probed in the direct photon-jet correlation in pA collisions. Dijet-correlation in pA collisions depends on both gluon distributions through combination and convolution in the large Nc limit.

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Fabio Dominguez, Bo-Wen Xiao, Feng Yuan. 2011-01-25. kt-factorization for Hard Processes in Nuclei. https://doi.org/10.1103/physrevlett.106.022301

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