الفهرس | Only 14 pages are availabe for public view |
Abstract One of the main goals of ultra-relativistic nuclear collisions is to invest igate the possibility of existence of a new state of strongly interacting matter, the quark-gluon plasma (QGP). Many signals have been pro posed to probe such exotic state. An unambiguous signal has yet to be found. We study the boundary effect on the momentum distribu tions of the QGP constituents and how it affects the distributions of two proposed signals, the dilepton and the charm production rates. The boundary and Coulomb effects on pion system produced in relativistic nuclear collisions are also examined to show the boundary effects on massive boson systems and to study the low transverse momentum en hancement in the pion distributions in such collisions. A Monte Carlo technique is used to simulate relativistic heavy-ion collisions at RHIC energies ( y’s = 200 GeV) in order to estimate the initial temperature of the produced system in such collisions. Boundary effects are novel features which may signal the formation of a QGP, through an enhance ment at high transverse momenta relative to thermal distributions in both dilepton and charm transverse momentum distributions. |