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TMD factorization for dijets + photon production from the dilute-dense CGC framework

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arxiv 1810.11273 v2 pith:6NKDP7AN submitted 2018-10-26 hep-ph nucl-th

Tolga Altinoluk , Renaud Boussarie , Cyrille Marquet , Pieter Taels This is my paper · ORCID
classification hep-phnucl-th
keywords limitcorrelationcrossdilute-densefactorizationframeworkgluonmomenta
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We calculate the production of a photon and two jets at forward rapidity in proton-nucleus collisions, within the hybrid dilute-dense framework in the Color Glass Condensate (CGC) formalism. After obtaining the cross section for both the quark- and gluon-initiated channels, we consider the correlation limit, in which the vector sum of the transverse momenta of the three outgoing particles is small with respect to the individual transverse momenta. In this limit, the cross section simplifies considerably and can be written in a factorized form, sensitive to various unpolarized and linearly-polarized transverse-momentum-dependent gluon distribution functions (gluon TMDs). Thus, we demonstrate for the first time that the emergence of a TMD factorization formula in the correlation limit, from CGC expressions, holds beyond the previously-considered simpler $2\to2$ processes.

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Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Forward trijet production in proton-nucleus collisions: gluon initiated channel

    hep-ph 2026-04 unverdicted novelty 7.0 of 10

    The gluon-initiated trijet channel in forward pA collisions is calculated at leading order in CGC, revealing a four-gluon vertex structure matching instantaneous terms and showing how rapidity and collinear divergence...

  2. One-loop renormalization of quark TMD in the light-cone gauge: CSS evolution

    hep-ph 2025-05 conditional novelty 6.0 of 10

    One-loop renormalization of the quark TMD in the target light-cone gauge with the Mandelstam-Leibbrandt prescription reproduces the CSS evolution equations, with the double log traced to the ML zero-mode in diagrams e...

  3. Effective theories for nuclei at high energies

    hep-ph 2025-02 unverdicted novelty 1.0 of 10

    This paper reviews the Color Glass Condensate effective theory, covering its foundations, its role in deep inelastic scattering, and its use in setting initial conditions for heavy-ion collisions.

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