[Brahms-l] DNP abstract

Hi Flemming, others

     please fine below a revised abstract for DNP. I intend to submit it
by tomorrow.

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      Centrality dependent studies of particle spectra at RHIC
            Selemon Bekele for the BRAHMS collaboration

A major goal of the RHIC program is to create a deconfined state of nuclear matter
 at high temperatures and densities and to study the properties of this matter. A 
transition from a deconfined phase of quarks and gluons to hadronic matter requires
significant rescattering of particles in the initial phase. The amount of rescattering
 is expected to increase with the size of the reaction region. It is therefore of 
interest to study reactions over a wide range of collision geometries as measured by
 centrality. Recent results from AuAu collisions at 200 GeV/NN at RHIC show clear evidence
 of suppression of the hadron yields at mid-rapidity. Surprisingly, comparable suppression
 at forward rapidity has also been observed. While the suppression at mid-rapidity is 
believed to be due to final state effects, the cause of the suppression at forward
 rapidity is not very well understood. Comparing data from different collision systems
 may help us understand the underlying mechanism for the suppression at forward rapidity.
 We present preliminary results from the BRAHMS experiment on charged hadron spectra at
 pseudo-rapidity ~ 3.0 as a function of centrality in CuCu collisions at 200 GeV/NN.

This work was supported by the Office of Nuclear Physics of the U.S. Department of Energy.  
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Selemon,

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