dNch/dn distribution from PHOBOS

A. H. Wuosmaa, B. B. Back, M. D. Baker, D. S. Barton, R. R. Betts, R. Bindel, A. Budzanowski, W. Busza, A. Carroll, M. P. Decowski, E. Garcia, N. George, K. Gulbrandsen, S. Gushue, C. Halliwell, J. Hamblen, G. A. Heintzelman, C. Henderson, R. Holyński, D. J. HofmanB. Holzman, E. Johnson, J. L. Kane, J. Katzy, N. Khan, W. Kucewicz, P. Kulinich, W. T. Lin, D. McLeod, J. Michałowski, A. C. Mignerey, J. Mülmenstädt, R. Nouicer, A. Olszewski, R. Pak, I. C. Park, H. Pernegger, C. Reed, L. P. Remsberg, M. Reuter, C. Roland, G. Roland, L. Rosenberg, P. Sarin, P. Sawicki, W. Skulski, S. G. Steadman, G. S.F. Stephans, P. Steinberg, M. Stodulski, A. Sukhanov, J. L. Tang, R. Teng, A. Trzupek, C. Vale, G. J. van Nieuwenhuizen, R. Verdier, B. Wadsworth, F. L.H. Wolfs, B. Wosiek, K. Woźniak, B. Wysłouch

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


From these results one may deduce that even though important physical processes such as hadronic final state interactions and re-scattering are not included in the HIJING model, it is able to reproduce approximately the measured pseudo-rapidity distributions. In detail, however, some elements are clearly lacking. As reported previously[5,8] the centrality dependence for h < 1 is not well reproduced. The deficiency in the region of h ≈1.8-4 observed for essentially all centralities may suggest a possible sensitivity to re-scattering or final-state-interaction effects. A comparison of the centrality dependence of the pseudo-rapidity distributions from other models, that include additional dynamics, would be very interesting and could provide a basis for separating the effects of new phenomena from "conventional" physics backgrounds.

Original languageEnglish
Pages (from-to)88-93
Number of pages6
JournalNuclear Physics A
Issue number1-4
StatePublished - 11 Feb 2002


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