Scale evolution of T-odd gluon TMDs at small x

Daniël Boer, Yoshikazu Hagiwara, Jian Zhou, Ya Jin Zhou

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Abstract

We study the transverse momentum dependent (TMD) evolution of the three leading twist dipole type T-odd gluon TMDs inside a transversely polarized nucleon, all of which at small x dynamically originate from the spin dependent odderon. Their energy dependence presents a unique opportunity to study the polarization dependent TMD evolution in the small-x region, where the distributions are identical up to a normalization constant at tree level. We further propose to study their evolution via azimuthal asymmetries in virtual photon-jet production in polarized proton-proton collisions at RHIC. We present model predictions for the asymmetries as functions of the large jet or photon transverse momentum and Q2 which set the hard scales in this process.

Original languageEnglish
Article number096017
Number of pages9
JournalPhysical Review D
Volume105
Issue number9
DOIs
Publication statusPublished - 1-May-2022

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