Adare, A Onset of pi(0) suppression studied in Cu+Cu collisions at sqrt S NN=22.4, 62.4, and 200 GeV. [electronic resource] - Physical review letters Oct 2008 - 162301 p. digital Publication Type: Journal Article ISSN: 0031-9007 Standard No.: 10.1103/PhysRevLett.101.162301 doi