normal and anomalous suppressions in a hadron and string cascade model
arXiv:nucl-th/9809020 · doi:10.1088/0954-3899/25/6/302
Abstract
A mechanism for the effective dissociation of a pair in the colour electric field of strings is introduced into a hadron and string cascade model, i.e. JPCIAE, which is based on the LUND model, simulating ultra-relativistic nucleus - nucleus collisions. This new mechanism together with the known mechanism of nuclear absorption (both baryons and mesons) could reproduce fairly the data of the normal and anomalous suppressions in minimum bias pA, AB (with light projectile), and Pb + Pb collisions at 200 A GeV/c. However the impact parameter (E_T) dependence of the suppression factor, both, in S + U and Pb + Pb reactions at 200 A GeV/c and 158 A GeV/c, respectively, is not well reproduced. We also tested the additional mechanism of the energy degradation of leading particles, with which both, the normal and anomalous suppressions in minimum bias pA, AB, and Pb + Pb collisions and the E_T dependence of the suppression factor are better reproduced.
arXiv comment16 pages (RevTex), 6 ps-figures, to be published in J. Phys. G
References in corpus (24)
- Signatures of Quark-Gluon-Plasma formation in high energy heavy-ion collisions: A critical review
- A Quantitative Analysis of Charmonium Suppression in Nuclear Collisions
- J/Psi Suppression in Pb-Pb Collisions: A Hint of Quark-Gluon Plasma Production?
- A Model of Charmonium Absorption by Light Mesons
- Charmonium Suppression by Comover Scattering in Pb+Pb Collisions
- Production and absorption of pairs in nuclear collisions at SPS energies
- suppression in nuclear collisions at SPS energies
- A quantitative reanalysis of charmonium suppression in nuclear collisions
- J/Ψproduction, polarization and Color Fluctuations
- Hard probes in nucleus-nucleus collisions
- The Transverse Momentum Dependence of Anomalous Suppression
- Charmonium Suppression with cc~ Dissociation by Strings
- Quarkonium Production and Color Deconfinement in Nuclear Collisions
- and suppression by comovers in Pb+Pb collisions
- Suppression of Psi' and J/Psi in High-Energy Heavy-Ion Collisions
- Increase of Effective String Tension and Production of Strange Particles
- J/ψSuppression in Pb+Pb Collisions: A New Look at Hadrons vs. Plasma
- suppression in heavy ion collsions and the QCD phase transition
- Production of mini-(gluon)jets and strangeness enhancement in pA and AA collisions at relativistic energies
- J/ψ-dissociation by a color electric flux tube
- The Role of Gluon Depletion in J/psi Suppression
- Enhanced J/psi suppression due to gluon depletion
- Is there Anomalous J/psi Suppression in Present-day Heavy-ion Collisions?
- Energy Loss in Nuclear Drell-Yan Process