Non-Universality of Transverse Momentum Dependent Parton Distributions at Small-x

Abstract

We study the universality issue of the transverse momentum dependent parton distributions at small-x, by comparing the initial/final state interaction effects in dijet-correlation in pA collisions with those in deep inelastic lepton nucleus scattering. We demonstrate the non-universality by performing an explicit calculation in a particular model where the multiple gauge boson exchange contributions are summed up to all orders. We comment on the implications of our results on the theoretical interpretation of di-hadron correlation in dA collisions in terms of the saturation phenomena in deep inelastic lepton nucleus scattering.

11 pages, 3 figures

References in corpus (9)

• No Generalized TMD-Factorization in the Hadro-Production of High Transverse Momentum Hadrons
• Forward inclusive dijet production and azimuthal correlations in pA collisions
• k_T factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions
• The Construction of Gauge-Links in Arbitrary Hard Processes
• Semi-inclusive Deep Inelastic Scattering at small x
• Two-particle correlations in high energy collisions and the gluon four-point function
• Hadronic Dijet Imbalance and Transverse-Momentum Dependent Parton Distributions
• Single Transverse-Spin Asymmetry in Hadronic Dijet Production
• Asymmetric Di-jet Production in Polarized Hadronic Collisions

Cited by in corpus (23)

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• Implementing the exact kinematical constraint in the saturation formalism
• Universality of multi-particle production in QCD at high energies
• Probing the Weizsäcker-Williams gluon Wigner distribution in pp collisions
• Forward Jets and Energy Flow in Hadronic Collisions
• Wilson lines and gauge invariant off-shell amplitudes
• Extra Spin Asymmetries From the Breakdown of TMD-Factorization in Hadron-Hadron Collisions
• TMD gluon distributions at small x in the CGC theory
• Transverse Momentum Dependent Parton Distribution/Fragmentation Functions at an Electron-Ion Collider
• Harmonics of Parton Saturation in Lepton-Jet Correlations at the EIC
• Photon-jet ridge at RHIC and the LHC
• Initial and Final State Interaction Effects in Small-x Quark Distributions
• Studying Coulomb correction at EIC and EicC
• On the process dependent nuclear $k_{\perp }$ broadening effect
• Three jet production and gluon saturation effects in p-p and p-Pb collisions within high-energy factorization
• Operator analysis of $p_T$-widths of TMDs
• Restoration of $k_T$ factorization for low $p_T$ hadron hadroproduction
• Unintegrated gluon distributions for forward jets at LHC
• The Search for Gluon Saturation in pA Collisions
• Suppression of contributions from large-parton-number Fok states to T-odd distribution functions in Drell-Yan scattering involving small-x annihilating quark and antiquark