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BRAHMS Results in the Context of Saturation and Quantum Evolution

BRAHMS Results in the Context of Saturation and Quantum Evolution We report BRAHMS results from RHIC d+Au and p+p collisions at √{<i>sNN</i>} = 200 GeV. A remarkable change in the nuclear modification factor <i>R</i>dAu is seen as the pseudorapidity of the detected charged hadrons changes from zero at mid-rapidity to 3.2 at the most forward angle studied during the 2003 run. For pseudorapidity &eta; > 1 the suppression of the <i>Rcp</i> factor is more pronounced in the sample of central events in contrast to the behavior at mid-rapidity where the central events show higher enhancement compared to a semi-central sample. These results are consistent with a saturated Au wave function strongly affected by quantum evolution at higher values of rapidity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Physica Hungarica Series A, Heavy Ion Physics Springer Journals

BRAHMS Results in the Context of Saturation and Quantum Evolution

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Publisher
Springer Journals
Copyright
Copyright © 2005 by Akadémiai Kiadó
Subject
Physics; Nuclear Physics, Heavy Ions, Hadrons
ISSN
1219-7580
eISSN
1588-2675
DOI
10.1556/APH.24.2005.1-4.3
Publisher site
See Article on Publisher Site

Abstract

We report BRAHMS results from RHIC d+Au and p+p collisions at √{<i>sNN</i>} = 200 GeV. A remarkable change in the nuclear modification factor <i>R</i>dAu is seen as the pseudorapidity of the detected charged hadrons changes from zero at mid-rapidity to 3.2 at the most forward angle studied during the 2003 run. For pseudorapidity &eta; > 1 the suppression of the <i>Rcp</i> factor is more pronounced in the sample of central events in contrast to the behavior at mid-rapidity where the central events show higher enhancement compared to a semi-central sample. These results are consistent with a saturated Au wave function strongly affected by quantum evolution at higher values of rapidity.

Journal

Acta Physica Hungarica Series A, Heavy Ion PhysicsSpringer Journals

Published: Mar 3, 2014

References