Manifestations of high density QCD in the first RHIC data

Kharzeev, Dmitri E.; Levin, E.

doi:10.1016/s0370-2693(01)01309-0

Cited by 399 publications

(378 citation statements)

References 41 publications

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“…V A. The parameter κ has been fixed at κ = 0.2 GeV 2 , consistent with the analysis of [47,48]. The overall normalization factor K F in the production cross section has been fitted to the RHIC data from [7,56].…”

Section: Results Of Numerical Calculationsmentioning

confidence: 99%

Signatures of the color glass condensate in production off nuclear targets

Kharzeev¹,

Tuchin²

2006

Nuclear Physics A

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110

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We consider the J/Ψ production in proton (deuteron) -nucleus collisions at high energies. We argue that the production mechanism in this case is different from that in pp collisions due to gluon saturation in the nucleus and formation of the Color Glass Condensate. At forward rapidities (in the proton fragmentation region), the production of J/Ψ is increasingly suppressed both as a function of rapidity and centrality. On the other hand, at backward rapidities at RHIC (in the fragmentation region of the nucleus) the coherent effects lead to a modest enhancement of the production cross section, with the nuclear modification factor R J/Ψ increasing with centrality. We find that the J/Ψ production cross section exhibits at forward rapidities the limiting fragmentation scaling established previously for soft processes; in the energy range studied experimentally, it manifests itself as an approximate "x F scaling".2

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Section: Results Of Numerical Calculationsmentioning

confidence: 99%

Signatures of the color glass condensate in production off nuclear targets

Kharzeev¹,

Tuchin²

2006

Nuclear Physics A

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110

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“…There are existing computational models which use the theoretical or phenomenological foundation of strong interactions to mimic the space-time evolution of collision experiments. One can broadly classify these models in two types: dynamical models [1][2][3][4][5][6][7][8][9][10] and semi dynamical models [11][12][13]. Dynamical models are those which consider the pre-equilibrium evolution as well as post equilibrium hydrodynamic evolution like IP-Glasma model etc [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Similarly EKRT model is based on the assumption of final state gluon saturation and thus the initial energy density and produced number of partons scales with atomic number and beam energy [2,3]. In KLN model, the inclusive production of partons is driven by the parton saturation in strong gluon fields [4][5][6][7]. In saturation regime, the multiplicity of produced partons should be proportional to atomic number [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…In KLN model, the inclusive production of partons is driven by the parton saturation in strong gluon fields [4][5][6][7]. In saturation regime, the multiplicity of produced partons should be proportional to atomic number [4][5][6][7]. On the other hand the particle production mechanism in semi-classical models are implemented via some phenomenological parameterization or using Monte Carlo event generator e.g., in MC-Glauber model, the particle production is based on static initial conditions and two-component parameterization in which first term is proportional to mean number of participants and second term is proportional to mean number of collisions [11].…”

Section: Introductionmentioning

confidence: 99%

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Transverse momentum distribution and elliptic flow of charged hadrons in $$U+U$$ U + U collisions at $$\sqrt{s_{NN}}=193$$ s NN = 193 GeV using HYDJET++

et al. 2018

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Recent experimental observations of the charged hadron properties in U + U collisions at 193 GeV contradict many of the theoretical models of particle production including two-component Monte Carlo Glauber model. The experimental results show a small correlation between the charged hadron properties and the initial geometrical configurations (e.g. body-body, tip-tip etc.) of U +U collisions. In this article, we have modified the Monte Carlo HYDJET++ model to study the charged hadron production in U + U collisions at 193 GeV center-of-mass energy in tip-tip and body-body initial configurations. We have modified the hard as well as soft production processes to make this model suitable for U + U collisions. We have calculated the pseudorapidity distribution, transverse momentum distribution and elliptic flow distribution of charged hadrons with different control parameters in various geometrical configurations possible for U + U collision. We find that HYDJET++ model supports a small correlation between the various properties of charged hadrons and the initial geometrical configurations of U + U collision. Further, the results obtained in modified HYDJET++ model regarding dn ch /dη and elliptic flow (v 2 ) suitably matches with the experimental data of U + U collisions in minimum bias configuration.

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“…[8][9][10][11][12][13]). One of the major reasons for this, is that the calculational precision of the saturation based approaches is still far from satisfactory.…”

Section: Introduction and Conclusionmentioning

confidence: 99%

Single inclusive particle production in proton-nucleus collisions at next-to-leading order in the hybrid formalism

et al. 2015

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We reconsider the perturbative next-to-leading calculation of the single inclusive hadron production in the framework of the hybrid formalism, applied to hadron production in proton-nucleus collisions. Our analysis, performed in the wave function approach, differs from the previous works in three points. First, we are careful to specify unambiguously the rapidity interval that has to be included in the evolution of the leading-order eikonal scattering amplitude. This is important, since varying this interval by a number of order unity changes the next-to-leading order correction that the calculation is meant to determine. Second, we introduce the explicit requirement that fast fluctuations in the projectile wave function which only exist for a short time are not resolved by the target. This Ioffe time cutoff also strongly affects the next-to-leading order terms. Third, our result does not employ the approximation of a large number of colors. Our final expressions are unambiguous and do not coincide at next-to-leading order with the results available in the literature.

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Manifestations of high density QCD in the first RHIC data

Cited by 399 publications

References 41 publications

Signatures of the color glass condensate in production off nuclear targets

Signatures of the color glass condensate in production off nuclear targets

Transverse momentum distribution and elliptic flow of charged hadrons in $$U+U$$ U + U collisions at $$\sqrt{s_{NN}}=193$$ s NN = 193 GeV using HYDJET++

Single inclusive particle production in proton-nucleus collisions at next-to-leading order in the hybrid formalism

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