suppression in nuclear collisions at SPS energies

Cassing, W.; Ko, C. M.

doi:10.1016/s0370-2693(97)00115-9

Cited by 73 publications

(80 citation statements)

References 21 publications

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“…Although earlier studies based on the perturbative QCD [28] and simple hadronic model [29] give a much smaller J/ψ absorption cross sections by hadrons, the above values are consistent with recent studies using the quark-interchange model [30] and the more complete hadronic model [31,32]. Using these cross sections in the transport model, it has been found that the observed suppression of J/ψ production in heavy ion collisions at the SPS energies can be reasonably described except for the most central collisions [33][34][35]. As the formation time of J/ψ is comparable to the passing time (0.1 fm/c) of two colliding nuclei at RHIC energies, J/ψ absorption by the projectile and target nucleons is not expected to be important [36] and will be ignored in the present study.…”

Section: J/ψ Absorptionsupporting

confidence: 87%

J/ψsuppression in ultrarelativistic nuclear collisions

et al. 2000

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Using a multiphase transport model, we study the relative importance of J/ψ suppression mechanisms due to plasma screening, gluon scattering, and hadron absorption in heavy ion collisions at the Relativistic Heavy Ion Collider. We find that for collisions between heavy nuclei such as Au+Au, both plasma screening and gluon scattering are important. As a result, the effect due to absorption by hadrons becomes relatively minor. The final J/ψ survival probability in these collisions is only a few percent. In the case of collisions between light nuclei such as S+S, the effect of plasma screening is, however, negligible in spite of the initial high parton density. The final J/ψ survival probability thus remains appreciable after comparable absorption effects due to gluons and hadrons. 25.75.Dw, 24.10.Lx, 24.10.Jv

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Section: J/ψ Absorptionsupporting

confidence: 87%

J/ψsuppression in ultrarelativistic nuclear collisions

et al. 2000

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“…However, the absorption cross sections for J/ψ remain appreciable after including form factors at interaction vertices. With Λ = 1 GeV, the values for σ πψ and σ ρψ are roughly 3 mb and 2 mb, respectively, and are comparable to those used in phenomenological studies of J/ψ absorption by comoving hadrons in relativistic heavy ion collisions [4].…”

Section: Cross Sections For Charmonium Absorptionsupporting

confidence: 61%

Charmonium absorption in the meson-exchange model

Lin

Ko²

2003

Nuclear Physics A

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We review the meson-exchange model for charmonium absorption by hadrons. This includes the construction of the interaction Lagrangians, the determination of the coupling constants, the introduction of form factors, and the predicted cross sections for J/ψ absorption by both mesons and nucleons. We further discuss the effects due to anomalous parity interactions, uncertainties in form factors, constraints from chiral symmetry, and the change of charmed meson mass in medium on the cross sections for charmonium absorption in hadronic matter.

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“…In particular, the observed abnormal suppression of J /ψ in central Pb+Pb collisions at SPS has been attributed to the formation of the quark-gluon plasma in these collisions [150,151]. However, there are other possible mechanisms for J /ψ suppression in heavy ion collisions [152][153][154], e.g., J /ψ may be destroyed by collisions with incoming nucleons or with gluons in the initial partonic matter [155,156] or with comoving hadrons in the hadronic matter [157][158][159][160][161][162][163][164][165][166][167][168][169][170][171].…”

Section: G Equilibration Between J/ψ and Open Charmmentioning

confidence: 99%

Multiphase transport model for relativistic heavy ion collisions

et al. 2005

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We describe in detail how the different components of a multiphase transport (AMPT) model that uses the heavy ion jet interaction generator (HIJING) for generating the initial conditions, Zhang's parton cascade (ZPC) for modeling partonic scatterings, the Lund string fragmentation model or a quark coalescence model for hadronization, and a relativistic transport (ART) model for treating hadronic scatterings are improved and combined to give a coherent description of the dynamics of relativistic heavy ion collisions. We also explain the way parameters in the model are determined and discuss the sensitivity of predicted results to physical input in the model. Comparisons of these results to experimental data, mainly from heavy ion collisions at the BNL Relativistic Heavy Ion Collider, are then made in order to extract information on the properties of the hot dense matter formed in these collisions.

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suppression in nuclear collisions at SPS energies

Cited by 73 publications

References 21 publications

J/ψsuppression in ultrarelativistic nuclear collisions

J/ψsuppression in ultrarelativistic nuclear collisions

Charmonium absorption in the meson-exchange model

Multiphase transport model for relativistic heavy ion collisions

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