High-pT charged hadron suppression in Au+Au collisions at √sNN=200 GeV

Adler, S. S. ; Kapoor, S. S. ; et., al (2004) High-pT charged hadron suppression in Au+Au collisions at √sNN=200 GeV Physical Review C, 69 (3). 034910_1-034910_20. ISSN 0556-2813

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Official URL: http://prc.aps.org/abstract/PRC/v69/i3/e034910

Related URL: http://dx.doi.org/10.1103/PhysRevC.69.034910


The PHENIX experiment at the Relativistic Heavy Ion Collider has measured charged hadron yields at midrapidity over a wide range of transverse momenta (0.5<pT<10 GeV/c) in Au+Au collisions at √sNN=200 GeV. The data are compared to π0 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 4-5 GeV/c in pT, a constant and almost identical suppression of charged hadrons and π0's is observed. The pT spectra are compared to published spectra from Au+Au at √sNN=130 in terms of xT scaling. Central and peripheral π0 as well as peripheral charged spectra exhibit the same xT scaling as observed in p+p data.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:16694
Deposited On:15 Nov 2010 13:26
Last Modified:17 May 2016 01:25

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