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Probing the Sivers function with an unpolarized target: GTMD distributions and the Odderons

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arxiv 1912.08182 v1 pith:IPPNTCLP submitted 2019-12-17 hep-ph hep-exnucl-exnucl-th

Renaud Boussarie , Yoshitaka Hatta , Lech Szymanowski , Samuel Wallon This is my paper · ORCID
classification hep-phhep-exnucl-exnucl-th
keywords functionsiverspolarizedbelievedcasecommonlyconnectiondemonstrate
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abstract

It is commonly believed that the Sivers function has uniquely to do with processes involving a transversely polarized nucleon. In this paper we show that it is not necessarily the case. We demonstrate that exclusive pion production in $un$polarized electron-proton scattering in the forward region is a direct probe of the gluon Sivers function due to its connection to the QCD Odderon.

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Forward citations

Cited by 2 Pith papers

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

  1. Gluon GTMDs in the exclusive electroproduction of heavy-quark pairs

    hep-ph 2026-07 accept novelty 6.0 of 10

    Exclusive heavy-quark pair electroproduction is expressed through gluon GTMDs, with all azimuthal modulations catalogued and shown to reduce consistently to GPD-based formulas in the collinear limit.

  2. Off forward non-SCHC contributions to exclusive vector quarkonium production from the "spin dependent BFKL Pomeron"

    hep-ph 2025-06 conditional novelty 6.0 of 10

    The spin-dependent BFKL Pomeron generates proton-helicity-flip amplitudes in exclusive quarkonium photoproduction at order momentum transfer squared, with explicit eikonal expressions and quark-model estimates.

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