Recommended Citation
Published in Physical Review C, Volume 70, Issue 6, December 23, 2004, pages 064907-1-064907-7.
STAR is composed of 63 institutions from 13 countries, with a total of 611 collaborators. A variety of personnel participate in the collaboration, including students, university faculty and staff, national laboratory staff, and engineers.
For more information on the STAR Collaboration, visit https://www.star.bnl.gov
The definitive version is available at https://doi.org/10.1103/PhysRevC.70.064907.
Abstract
The pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d+Au collisions at √sNN=200 GeV are presented. The charged particle density at midrapidity, its pseudorapidity asymmetry, and centrality dependence are reasonably reproduced by a multiphase transport model, by HIJING, and by the latest calculations in a saturation model. Ratios of transverse momentum spectra between backward and forward pseudorapidity are above unity for pT below 5GeV ∕ c. The ratio of central to peripheral spectra in d+Au collisions shows enhancement at 2 < pT < 6GeV ∕ c, with a larger effect at backward rapidity than forward rapidity. Our measurements are in qualitative agreement with gluon saturation and in contrast to calculations based on incoherent multiple partonic scatterings.
Disciplines
Physics
Copyright
Number of Pages
7
Publisher statement
This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society.
NOTE: At the time of publication, the author Thomas Gutierrez was not yet affiliated with Cal Poly.
URL: https://digitalcommons.calpoly.edu/phy_fac/554