CGC for Ultra-Peripheral Pb+Pb Collisions at the Large Hadron Collider: a more realistic calculation

Abstract

We provide the first calculation of two-gluon production at mid-rapidity in ultra-peripheral collisions in the Color Glass Condensate framework. To estimate systematic uncertainty associated with poor understanding of the wave function of the nearly real photon, we consider two diametrically different models: the dilute quark-antiquark dipole approximation and a vector meson, in which color charge density is approximated by McLerran-Venugopalan model. In the experimentally relevant range, the target nucleus can be faithfully approximated by a highly saturated state. This simplification enables us to perform efficient numerical simulations and extract the two-gluon correlation functions and the associated azimuthal harmonics.

arXiv comment35 pages,8 figures

References in corpus (41)

• Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC
• Long-range angular correlations on the near and away side in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• The Physics of Ultraperipheral Collisions at the LHC
• Observation of Associated Near-side and Away-side Long-range Correlations in sqrt(s_NN)=5.02 TeV Proton-lead Collisions with the ATLAS Detector
• Physics of Ultra-Peripheral Nuclear Collisions
• Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central $d$$+$Au Collisions at $\sqrt{s_{{}_{NN}}}$=200 GeV
• Small System Collectivity in Relativistic Hadron and Nuclear Collisions
• Saturation and Universality in QCD at small x
• Inclusive Two-Gluon and Valence Quark-Gluon Production in DIS and pA
• Eikonal Evolution and Gluon Radiation
• Angular Correlations in Gluon Production at High Energy
• Long-Range Rapidity Correlations in Heavy-Light Ion Collisions
• A collision geometry-based 3D initial condition for relativistic heavy-ion collisions
• Angular and long range rapidity correlations in particle production at high energy
• Dipole factorization for DIS at NLO I: Loop correction to the photon to quark-antiquark light-front wave-functions
• Froissart Bound from Gluon Saturation
• 3-D Glasma initial state for relativistic heavy ion collisions
• The smallest fluid on earth
• Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity $p$$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Two-particle azimuthal correlations in photonuclear ultraperipheral Pb+Pb collisions at 5.02 TeV with ATLAS
• Particle Correlations in Saturated QCD Matter
• Measurements of two-particle correlations in $e^{+}{e}^{-}$ collisions at 91 GeV with ALEPH archived data
• Constraints on rapidity-dependent initial conditions from charged particle pseudorapidity densities and two-particle correlations
• Dense-Dilute Duality at work: dipoles of the target
• Two-Gluon Correlations in Heavy-Light Ion Collisions: Energy and Geometry Dependence, IR Divergences, and $k_T$-Factorization
• Useful relations among the generators in the defining and adjoint representations of SU(N)
• Gluon Distributions and Color Charge Correlations in a Saturated Light-cone Wavefunction
• Effect of event selection on jetlike correlation measurement in $d$+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the two-gluon correlation function in high-energy collisions
• Two-particle azimuthal correlations as a probe of collective behaviour in deep inelastic $\text{ep}$ scattering at HERA
• Double and triple inclusive gluon production at mid rapidity: quantum interference in p-A scattering
• DPS in CGC: Double Quark Production and Effects of Quantum Statistics
• Multi Quark Production in p+A collisions: Quantum Interference Effects
• Does shape matter? v_2 vs eccentricity in small x gluon production
• Exploring the Collective Phenomenon at the Electron-Ion Collider
• Bose enhancement, the Liouville effective action and the high multiplicity tail in p-A collisions
• JIMWLK Evolution, Lindblad Equation and Quantum-Classical Correspondence
• Angular correlations in pA collisions from CGC: multiplicity and mean transverse momentum dependence of $v_2$
• First saturation correction in high energy proton-nucleus collisions: Part III. Ensemble averaging
• Asymmetric longitudinal flow decorrelations in proton-nucleus collisions
• The MV Model of the Color Glass Condensate for a Finite Number of Sources Including Coulomb Interactions

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