Suppressed π0 Production at Large Transverse Momentum in Central Au + Au Collisions at √sNN = 200 GeV
Physical Review Letters Volume 91 Issue 7
Page 072301-1-072301-6
published_at 2003-08-13
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| File | |
| Title ( eng ) |
Suppressed π0 Production at Large Transverse Momentum in Central Au + Au Collisions at √sNN = 200 GeV
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| Creator |
PHENIX Collaboration
Enokizono Akitomo
Hachiya Takashi
Kohama Takeshi
Nakamura Tomoaki
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| Source Title |
Physical Review Letters
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| Volume | 91 |
| Issue | 7 |
| Start Page | 072301-1 |
| End Page | 072301-6 |
| Abstract |
Transverse momentum spectra of neutral pions in the range 1 < pT < 10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au + Au collisions at √sNN = 200 GeV. The π0 multiplicity in central reactions is significantly below the yields measured at the same √sNN in peripheral Au + Au and p + p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is ∼2.5 at pT = 2 GeV/c and increases to ∼4–5 at pT ≈ 4 GeV/c. At larger pT, the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2003-08-13 |
| Rights |
Copyright (c) 2003 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.91.072301
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.91.072301
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