Nuclear Modification Factors for Hadrons at Forward and Backward Rapidities in Deuteron-Gold Collisions at √sNN = 200 GeV
Physical Review Letters Volume 94 Issue 8
Page 082302-1-082302-6
published_at 2005-03-02
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| File | |
| Title ( eng ) |
Nuclear Modification Factors for Hadrons at Forward and Backward Rapidities in Deuteron-Gold Collisions at √sNN = 200 GeV
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| Creator |
PHENIX Collaboration
Hachiya Takashi
Kohara Ryota
Nakamura Tomoaki
Tsuchimoto Yuji
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| Source Title |
Physical Review Letters
|
| Volume | 94 |
| Issue | 8 |
| Start Page | 082302-1 |
| End Page | 082302-6 |
| Abstract |
We report on charged hadron production in deuteron-gold reactions at √SNN = 200 GeV. Our measurements in the deuteron direction cover 1.4 < η < 2.2, referred to as forward rapidity, and in the gold direction -2.0 < η < -1.4, referred to as backward rapidity, and a transverse momentum range PT = 0.5-.0 GeV/c. We compare the relative yields for different deuteron-gold collision centrality classes. We observe a suppression relative to binary collision scaling at forward rapidity, sensitive to low momentum fraction (x) partons in the gold nucleus, and an enhancement at backward rapidity, sensitive to high momentum fraction partons in the gold nucleus.
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| Keywords |
heavy ion-nucleus reactions
deuteron-nucleus reactions
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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 | 2005-03-02 |
| Rights |
Copyright (c) 2005 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.94.082302
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.94.082302
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