Abstract
The dependence of transverse momentum spectra of neutral pions and mesons with and , respectively, on the centrality of the collision has been measured at midrapidity by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) in collisions at . The measured yields are compared to those in collisions at the same scaled by the number of underlying nucleon-nucleon collisions in . At all centralities, the yield ratios show no suppression, in contrast to the strong suppression seen for central collisions at RHIC. Only a weak and centrality dependence can be observed.
- Received 23 October 2006
DOI:https://doi.org/10.1103/PhysRevLett.98.172302
©2007 American Physical Society