Comparison of the color glass condensate to dihadron correlations in proton-proton and proton-nucleus collisions

Dusling, Kevin; Venugopalan, Raju

doi:10.1103/physrevd.87.094034

Cited by 268 publications

(205 citation statements)

References 53 publications

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“…Our expression for two gluon inclusive production is directly relevant to recent calculations of ridge correlations in [89,90]. Ref.…”

Section: Jhep04(2014)075mentioning

confidence: 99%

“…This term is particularly interesting since it gives the leading contribution to correlated gluon emission as discussed in [88]. Approximate numerical implementation of this term has been used to describe the observed ridge correlations in p-p and p-A collisions at LHC in [89,90]. The contribution of this term to the cross section is…”

Section: Inclusive Two Gluon Productionmentioning

confidence: 99%

“…(4.22). Even in the dense-dense regime in the calculation of [89,90] the correlated emission given by the first (two Pomeron) term in eq. (4.22) arises only at next to leading order in 1/N c .…”

Section: Jhep04(2014)075mentioning

confidence: 99%

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Reggeon field theory for large Pomeron loops

Altinoluk

Kovner

Levin

et al. 2014

J. High Energ. Phys.

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Abstract:We analyze the range of applicability of the high energy Reggeon Field Theory H RFT derived in [1]. We show that this theory is valid as long as at any intermediate value of rapidity η throughout the evolution at least one of the colliding objects is dilute. Importantly, at some values of η the dilute object could be the projectile, while at others it could be the target, so that H RFT does not reduce to either H JIM W LK or H KLW M IJ . When both objects are dense, corrections to the evolution not accounted for in [1] become important. The same limitation applies to other approaches to high energy evolution available today, such as for example [2,3] and [4][5][6]. We also show that, in its regime of applicability H RFT can be simplified. We derive the simpler version of H RFT and in the large N c limit rewrite it in terms of the Reggeon creation and annihilation operators. The resulting H RFT is explicitly self dual and provides the generalization of the Pomeron calculus developed in [4-6] by including higher Reggeons in the evolution. It is applicable for description of 'large' Pomeron loops, namely Reggeon graphs where all the splittings occur close in rapidity to one dilute object (projectile), while all the merging close to the other one (target). Additionally we derive, in the same regime expressions for single and double inclusive gluon production (where the gluons are not separated by a large rapidity interval) in terms of the Reggeon degrees of freedom.

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“…Our expression for two gluon inclusive production is directly relevant to recent calculations of ridge correlations in [89,90]. Ref.…”

Section: Jhep04(2014)075mentioning

confidence: 99%

Section: Inclusive Two Gluon Productionmentioning

confidence: 99%

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Reggeon field theory for large Pomeron loops

Altinoluk

Kovner

Levin

et al. 2014

J. High Energ. Phys.

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“…One reason for the disagreement could be that all initial state correlations that lead to an elliptic anisotropy 1 [17,18,19,20,21,22,23] are neglected. Additionally, the description of the proton in the IP-Glasma model is oversimplified.…”

Section: Ip-glasma + Musicmentioning

confidence: 99%

Collective effects in light–heavy ion collisions

Schenke

Venugopalan

2014

Nuclear Physics A

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We present results for the azimuthal anisotropy of charged hadron distributions in A+A, p+A, d+A, and 3 He+A collisions within the IP-Glasma+music model. Obtained anisotropies are due to the fluid dynamic response of the system to the fluctuating initial geometry of the interaction region. While the elliptic and triangular anisotropies in peripheral Pb+Pb collisions at √ s = 2.76 TeV are well described by the model, the same quantities in √ s = 5.02 TeV p+Pb collisions underestimate the experimental data. This disagreement can be due to neglected initial state correlations or the lack of a detailed description of the fluctuating spatial structure of the proton, or both. We further present predictions for azimuthal anisotropies in p+Au, d+Au, and 3 He+Au collisions at √ s = 200 GeV. For d+Au and 3 He+Au collisions we expect the detailed substructure of the nucleon to become less important.

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“…Thus an alternative interpretation could be that, instead of a ridge, the dynamically important phenomenon is actually a dip at a particular small, but nonzero, value of δφ. A number of authors have made comments and suggested explanations for the same-side ridge, including [3]- [19] .…”

Section: Introductionmentioning

confidence: 99%

Possible multiparticle ridge-like correlations in very high multiplicity proton–proton collisions

2013

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The CMS collaboration at the LHC has reported a remarkable and unexpected phenomenon in very high-multiplicity high energy proton-proton collisions: a positive correlation between two particles produced at similar azimuthal angles, spanning a large range in rapidity. We suggest that this "ridge"-like correlation may be a reflection of the rare events generated by the collision of aligned flux tubes connecting the valence quarks in the wave functions of the colliding protons. The "spray" of particles resulting from the approximate line source produced in such inelastic collisions then gives rise to events with a strong correlation between particles produced over a large range of both positive and negative rapidity. We suggest an additional variable that is sensitive to such a line source which is related to a commonly used measure, ellipticity.

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Comparison of the color glass condensate to dihadron correlations in proton-proton and proton-nucleus collisions

Cited by 268 publications

References 53 publications

Reggeon field theory for large Pomeron loops

Reggeon field theory for large Pomeron loops

Collective effects in light–heavy ion collisions

Possible multiparticle ridge-like correlations in very high multiplicity proton–proton collisions

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