Campus Units
Physics and Astronomy
Document Type
Article
Publication Version
Published Version
Publication Date
12-12-2012
Journal or Book Title
Physical Review Letters
Volume
109
Issue
24
First Page
242301
DOI
10.1103/PhysRevLett.109.242301
Abstract
The PHENIX experiment has measured electrons and positrons at midrapidity from the decays of hadrons containing charm and bottom quarks produced in d + Au and p + p collisions at root S-NN = 200 GeV in the transverse-momentum range 0.85 <= p(T)(e) <= 8.5 GeV/c. In central d + Au collisions, the nuclear modification factor R-dA at 1.5 < p(T) < 5 GeV/c displays evidence of enhancement of these electrons, relative to those produced in p + p collisions, and shows that the mass-dependent Cronin enhancement observed at the Relativistic Heavy Ion Collider extends to the heavy D meson family. A comparison with the neutral-pion data suggests that the difference in cold-nuclear-matter effects on light- and heavy-flavor mesons could contribute to the observed differences between the pi(0) and heavy-flavor-electron nuclear modification factors R-AA.
Copyright Owner
American Physical Society
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Adare, Andrew; Dion, Alan; Hill, John C.; Kempel, Todd; Lajoie, John G.; Lebedev, Alexandre; Ogilvie, Craig; Pei, H.; Rosati, Marzia; Silva, C. L.; Wei, Feng; et al.; and PHENIX Collaboration, "Cold-Nuclear-Matter Effects on Heavy-Quark Production in d+Au Collisions at root S-NN=200 GeV" (2012). Physics and Astronomy Publications. 267.
https://lib.dr.iastate.edu/physastro_pubs/267
Comments
This is an article from Physical Review Letters 109 (2012): 242301-1, doi:10.1103/PhysRevLett.109.242301. Posted with permission.