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Back-to-Back Correlations of Di-hadrons in dAu Collisions at RHIC

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arxiv 1109.1817 v3 pith:AAHVDOSM submitted 2011-09-08 hep-ph nucl-th

Back-to-Back Correlations of Di-hadrons in dAu Collisions at RHIC

classification hep-ph nucl-th
keywords collisionsrhicsaturationcorrelationsagreementanalysisangularaway
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We perform a complete theoretical analysis of the azimuthal angular correlation of two-hadron productions in the forward $dAu$ collisions at RHIC in the saturation formalism, and obtain a very good agreement with the experimental data. It is demonstrated that the suppression and broadening of the away side peak provide a unique signal for the onset of the saturation mechanism at small-$x$ in a large nucleus. We emphasize that future experiments of di-hadron correlations in $pA$ collisions at both RHIC and LHC, and in $eA$ collisions at the planned electron-ion collider, shall provide us with a thorough study and understanding of the strong interaction dynamics in the saturation regime.

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Forward citations

Cited by 2 Pith papers

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  1. Forward trijet production in proton-nucleus collisions: gluon initiated channel

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    The gluon-initiated trijet channel in forward pA collisions is calculated at leading order in CGC, revealing a four-gluon vertex structure matching instantaneous terms and showing how rapidity and collinear divergence...

  2. Probing Saturation Effect in Heavy Meson Pair Correlation in Forward $pA$ Collisions

    hep-ph 2026-05 unverdicted novelty 5.0

    Heavy meson pair correlations in forward pA collisions are computed in the CGC framework with Sudakov resummation, reproducing LHCb data and showing a mass hierarchy in R_pA that strengthens at higher rapidity.