English

Energy evolution of T-odd gluon TMDs at small $x$

High Energy Physics - Phenomenology 2022-06-01 v1

Abstract

We study the energy or TMD evolution of the three leading twist dipole type T-odd gluon TMDs inside a transversely polarized nucleon, all of which at small xx dynamically originate from the spin dependent odderon. Their energy dependence presents a unique opportunity to study the polarization dependent TMD evolution in the small-xx 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 Q2Q^2 which set the hard scales in this process.

Keywords

Cite

@article{arxiv.2203.00267,
  title  = {Energy evolution of T-odd gluon TMDs at small $x$},
  author = {Daniël Boer and Yoshikazu Hagiwara and Jian Zhou and Ya-jin Zhou},
  journal= {arXiv preprint arXiv:2203.00267},
  year   = {2022}
}

Comments

9 pages,4 figures