Cross section for charmonium absorption by nucleons

Liu, W.; Ko, Che Ming; Lin, Zhibin

doi:10.1103/physrevc.65.015203

Cited by 82 publications

(100 citation statements)

References 19 publications

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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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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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“…The approach used for the in-medium kaon is extended to incorporate the D meson by using gauged SU(4) vector mesons, a method adopted in part from Ref. [21]. The outcome is a Lagrangian similar to Eq.…”

Section: B Nmfamentioning

confidence: 99%

Dmesons in nuclear matter: ADNcoupled-channel equations approach

2006

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A set of coupled two-body scattering equations is solved for the DN system embedded in an isosymmetric nuclear matter. The in-medium behavior of charmed D mesons, (D + , D 0 ), is investigated from the self-consistent solution within this scheme. The effective meson-baryon Lagrangian in charm quantum number one sector, the key ingredient in the present study, is adopted from a recent model by Hofmann and Lutz that has aimed at combining the charmed meson degree of freedom in a consistent manner with chiral unitary models. After a critical examination, the original model is modified in several important aspects, such as the method of regularization, to be more consistent and practical for our objective. The resultant interaction is used to reproduce the position and width of the s-wave c (2593) resonance in the isospin zero DN channel. In the isospin one channel, it generates a rather wide resonance at ∼2770 MeV. The corresponding in-medium solution is then sought by incorporating Pauli blocking and the D-and π -meson dressing self-consistently. At normal nuclear matter density, the resultant c (2593) is found to stay narrow and shifted at a lower energy, whereas the I = 1 resonance is lowered in position as well and broadened considerably.

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“…One such constraint is the J/ψ absorption cross section by a nucleon, as this process can be viewed as the absorption of J/ψ by the virtual pion and rho meson cloud of the nucleon [20,21]. From J/ψ production in photon-and proton-nucleus reactions, the extracted cross section for J/ψ absorption by a nucleon is a few mb [22].…”

Section: Nuclear Absorptionmentioning

confidence: 99%

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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Cross section for charmonium absorption by nucleons

Cited by 82 publications

References 19 publications

Multiphase transport model for relativistic heavy ion collisions

Multiphase transport model for relativistic heavy ion collisions

Dmesons in nuclear matter: ADNcoupled-channel equations approach

Charmonium absorption in the meson-exchange model

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