Abstract
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured charged hadron yields at midrapidity over a wide range of transverse momenta in collisions at . The data are compared to measurements from the same experiment. For both charged hadrons and neutral pions, the yields per nucleon-nucleon collision are significantly suppressed in central compared to peripheral and nucleon-nucleon collisions. The suppression sets in gradually and increases with increasing centrality of the collisions. Above in , a constant and almost identical suppression of charged hadrons and ’s is observed. The spectra are compared to published spectra from at in terms of scaling. Central and peripheral as well as peripheral charged spectra exhibit the same scaling as observed in data.
11 More- Received 8 August 2003
DOI:https://doi.org/10.1103/PhysRevC.69.034910
©2004 American Physical Society