![](https://d3ilqtpdwi981i.cloudfront.net/WPRH8qbyYlSosVuIiUk18uUoyGk=/425x550/smart/https://bepress-attached-resources.s3.amazonaws.com/uploads/42/df/ed/42dfed0e-5f73-471e-acab-bcb9fb838bd3/thumbnail_42be64d1-78c3-4223-a1e6-c36278175ae9.jpg)
Article
Cold-Nuclear-Matter Effects on Heavy-Quark Production in d+Au Collisions at root S-NN=200 GeV
Physical Review Letters
Document Type
Article
Publication Version
Published Version
Publication Date
12-12-2012
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
Citation Information
Andrew Adare, Alan Dion, John C. Hill, Todd Kempel, et al.. "Cold-Nuclear-Matter Effects on Heavy-Quark Production in d+Au Collisions at root S-NN=200 GeV" Physical Review Letters Vol. 109 Iss. 24 (2012) p. 242301 Available at: http://works.bepress.com/craig-ogilvie/78/
This is an article from Physical Review Letters 109 (2012): 242301-1, doi:10.1103/PhysRevLett.109.242301. Posted with permission.