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

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 $x$ 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 $Q^2$ which set the hard scales in this process.

9 pages,4 figures

References in corpus (24)

• Universality of Unintegrated Gluon Distributions at small x
• k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
• Gluon and Wilson loop TMDs for hadrons of spin $\le$ 1
• kt-factorization for Hard Processes in Nuclei
• The Construction of Gauge-Links in Arbitrary Hard Processes
• Transverse-momentum resummation for heavy-quark hadroproduction
• Lepton-jet Correlations in Deep Inelastic Scattering at the Electron-Ion Collider
• Probing the linear polarization of photons in ultraperipheral heavy ion collisions
• Diffractive Dijet Production and Wigner Distributions from the Color Glass Condensate
• Probing Gluon Saturation through Dihadron Correlations at an Electron-Ion Collider
• Soft Gluon Resummations in Dijet Azimuthal Angular Correlations at the Collider
• Helicity-dependent generalization of the JIMWLK evolution
• Azimuthal asymmetries for quark pair production in pA collisions
• Impact parameter dependence of the azimuthal asymmetry in lepton pair production in heavy ion collisions
• TMD evolution and the Higgs transverse momentum distribution
• The elliptic gluon GTMD inside a large nucleus
• Interplay of the CGC and TMD frameworks to all orders in kinematic twist
• Small-$x$ dynamics in forward-central dijet decorrelations at the LHC
• Broadening and saturation effects in dijet azimuthal correlations in p-p and p-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}=$ 5.02 TeV
• Helicity at Small $x$: Oscillations Generated by Bringing Back the Quarks
• Signature of the gluon orbital angular momentum
• Computing the gluon Sivers function at small-$x$
• Color entanglement for $\gamma$-jet production in polarized pA collisions
• Color entanglement effect in collinear twist-3 factorization