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Helicity-dependent extension of the McLerran-Venugopalan model

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arxiv 2005.14688 v2 pith:L2IJZ5CD submitted 2020-05-29 hep-ph hep-exnucl-exnucl-th

classification hep-phhep-exnucl-exnucl-th
keywords modelgeneralizationhelicityhelicity-dependentmclerran-venugopalanapproximationcalculationcondition
verification ladder T0 review T1 audit T2 compute T3 formal
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We construct a generalization of the McLerran-Venugopalan (MV) model including helicity effects for a longitudinally polarized target (a proton or a large nucleus). The extended MV model can serve as the initial condition for the helicity generalization of the JIMWLK evolution equation constructed in our previous paper, as well as for calculation of helicity-dependent observables in the quasi-classical approximation to QCD.

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Cited by 3 Pith papers

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

  1. Analytic Solution for the Helicity Evolution Equations at Small $x$ and Large $N_c\&N_f$

    hep-ph 2025-07 conditional novelty 7.0 of 10

    An exact analytic solution of the revised large-Nc and large-Nf small-x helicity evolution equations in QCD, yielding all-order polarized DGLAP anomalous dimensions and small-x growth intercepts.

  2. Forward parton-nucleus scattering at next-to-eikonal accuracy in the CGC

    hep-ph 2024-11 conditional novelty 7.0 of 10

    Full next-to-eikonal quark and gluon propagators in a dynamical gluon background are derived, and forward quark and gluon production cross sections are computed for quark-nucleus and gluon-nucleus scattering.

  3. Quasi-Classical Evaluation of Gluon Saturation Induced Helicity Effects

    hep-ph 2024-11 conditional novelty 6.0 of 10

    A saturation-induced helicity-dependent A+ gluon field contributes at order Qs^6 to the two-particle dijet correlation and further suppresses the back-to-back peak in polarized e-A collisions.

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