Article
Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p plus Au collisions at root S-NN=200 GeV
Physical Review C
Document Type
Article
Publication Version
Published Version
Publication Date
3-24-2017
DOI
10.1103/PhysRevC.95.034910
Abstract
We present measurements of long-range angular correlations and the transverse momentum dependence of elliptic flow v(2) in high-multiplicity p + Au collisions at root S-NN = 200 GeV. A comparison of these results to previous measurements in high-multiplicity d + Au and He-3+Au collisions demonstrates a relation between v(2) and the initial collision eccentricity epsilon(2), suggesting that the observed momentum-space azimuthal anisotropies in these small systems have a collective origin and reflect the initial geometry. Good agreement is observed between the measured v(2) and hydrodynamic calculations for all systems, and an argument disfavoring theoretical explanations based on initial momentum-space domain correlations is presented. The set of measurements presented here allows us to leverage the distinct intrinsic geometry of each of these systems to distinguish between different theoretical descriptions of the long-range correlations observed in small collision systems.
Copyright Owner
American Physical Society
Copyright Date
2017
Language
en
File Format
application/pdf
Citation Information
C. Aidala, Nicole J. Apadula, John C. Hill, Nels J. Hotvedt, et al.. "Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p plus Au collisions at root S-NN=200 GeV" Physical Review C Vol. 95 (2017) p. 034910-1 - 034910-10 Available at: http://works.bepress.com/craig-ogilvie/73/
This is an article from Physical Review C 95 (2017): 034910-1, doi:10.1103/PhysRevC.95.034910. Posted with permission.