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.
|Number of pages||6|
|Journal||Nuclear Physics A|
|State||Published - 11 Feb 2002|