Improved TMD factorization for forward dijet production in dilute-dense hadronic collisions

P. Kotko, K. Kutak, C. Marquet, E. Petreska, S. Sapeta, A. van Hameren

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We study forward dijet production in dilute-dense hadronic collisions. By considering the appropriate limits, we show that both the transverse-momentum-dependent (TMD) and the high-energy factorization formulas can be derived from the Color Glass Condensate framework. Respectively, this happens when the transverse momentum imbalance of the dijet system, k(t), is of the order of either the saturation scale, or the hard jet momenta, the former being always much smaller than the latter. We propose a new formula for forward dijets that encompasses both situations and is therefore applicable regardless of the magnitude of k(t). That involves generalizing the TMD factorization formula for dijet production to the case where the incoming small-x gluon is off-shell. The derivation is performed in two independent ways, using either Feynman diagram techniques, or color-ordered amplitudes.
Original languageEnglish
Article number106
JournalJournal of High Energy Physics
Publication statusPublished - 16 Sept 2015

Bibliographical note

The improved version of the manuscript. 37 pages, 8 figures, several tables


  • hep-ph


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