High-pT charged hadron suppression in Au+Au collisions at √sNN=200 GeV
Use this link to cite this item : https://ir.lib.hiroshima-u.ac.jp/00019494
ID | 19494 |
file | |
creator |
PHENIX Collaboration
Enokizono, Akitomo
Hachiya, Takashi
Kohama, Takeshi
Nakamura, Tomoaki
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subject | nuclei with mass number 190 to 219
pion production
quark-gluon plasma
heavy ion-nucleus scattering
hadron production
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abstract | 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 x T scaling. Central and peripheral π0 as well as peripheral charged spectra exhibit the same xT scaling as observed in p+p data.
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journal title |
Physical Review C - Nuclear Physics
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volume | Volume 69
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issue | Issue 3
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start page | 034910-1
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end page | 034910-20
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date of issued | 2004-03-30
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publisher | American Physical Society
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issn | 0556-2813
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ncid | |
publisher doi | |
language |
eng
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nii type |
Journal Article
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HU type |
Journal Articles
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DCMI type | text
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format | application/pdf
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text version | publisher
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rights | Copyright (c) 2004 The American Physical Society.
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relation url | |
department |
Graduate School of Science
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