Azimuthal quadrupole correlation from gluon interference in 200 GeV and 7 TeV p+p collisions

Abstract

The Balitskii-Fadin-Kuraev-Lipatov (BFKL) multi-Pomeron model of Levin and Rezaeian, with extension to the gluon saturation region, is applied to long-range pseudorapidity correlations on relative azimuth for low momentum final-state hadrons produced in $\sqrt{s}$ = 200~GeV and 7~TeV p+p collisions. The multi-Pomeron exchange probabilities in the model were estimated by fitting the minimum-bias p+p multiplicity frequency distributions. The multi-Pomeron model prediction for the amplitude of the minimum-bias average quadrupole correlation, proportional to $\cos 2({\varphi }_1-{\varphi }_2)$, is consistent with the 200~GeV data when theoretically expected gluon saturation momentum scales are used. Correlation predictions for the high multiplicity 7~TeV p+p collision data are also consistent with the long-range pseudorapidity correlations at small relative azimuth observed in the data. The results presented here show that the present application of a multiple parton-shower, gluon interference mechanism for generating the long-range pseudorapidity, azimuthal quadrupole correlation is not excluded by the data.

10 pages, 5 figures

References in corpus (12)

• Some Features of the Glasma
• Centrality dependence of charged hadron and strange hadron elliptic flow from sqrt(s_NN) = 200 GeV Au+Au collisions
• Correlations from hydrodynamic flow in p-Pb collisions
• Evidence for BFKL and saturation dynamics from di-hadron spectra at the LHC
• Experimental Tests of Asymptotic Freedom
• Gluon saturation and inclusive hadron production at LHC
• Elliptic flow in proton-proton collisions at 7 TeV
• The multiplicity dependence of inclusive $p_t$ spectra from p-p collisions at $\sqrt{s}$ = 200 GeV
• Summing Pomeron loops in the dipole approach
• Size of the emission source and collectivity in ultra-relativistic p-Pb collisions
• Azimuthal Asymmetry of pions in pp and pA collisions
• Applicability of Monte Carlo Glauber models to relativistic heavy ion collision data

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• Azimuthal angle correlations in hadron-nucleus scattering: enhanced diagrams