Probing the Gluon Sivers Function with an Unpolarized Target: GTMD Distributions and the Odderons

Renaud Boussarie; Yoshitaka Hatta; Lech Szymanowski; Samuel Wallon

doi:10.1103/PhysRevLett.124.172501

Probing the Gluon Sivers Function with an Unpolarized Target: GTMD Distributions and the Odderons

Renaud Boussarie
, Yoshitaka Hatta
, Lech Szymanowski
, Samuel Wallon

Brookhaven National Laboratory
National Centre for Nuclear Research (NCBJ)
Université Paris-Saclay
Sorbonne Université

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

32 Citations (Scopus)

Résumé

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

langue originale	Anglais
Numéro d'article	172501
journal	Physical Review Letters
Volume	124
Numéro de publication	17
Les DOIs	https://doi.org/10.1103/PhysRevLett.124.172501
état	Publié - 1 mai 2020
Modification externe	Oui

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10.1103/PhysRevLett.124.172501

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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 Letter we show that this is not necessarily the case. We demonstrate that exclusive pion production in unpolarized 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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AB - It is commonly believed that the Sivers function has uniquely to do with processes involving a transversely polarized nucleon. In this Letter we show that this is not necessarily the case. We demonstrate that exclusive pion production in unpolarized 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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Probing the Gluon Sivers Function with an Unpolarized Target: GTMD Distributions and the Odderons

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