Long-range pseudorapidity dihadron correlations in d + Au collisions at √s[subscript NN] = 200 GeV
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Adamczyk-2015-Long-range pseudorap.pdf
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Author(s)
van Nieuwenhuizen, Gerrit J
Date Issued
June 2015
Journal
Physics Letters B
Publisher
Elsevier
Citation
“Long-Range Pseudorapidity Dihadron Correlations in d + AuCollisions at √s[subscript NN] = 200 GeV.” Physics Letters B 747 (July 2015): 265–271.
Version
Final published version
Abstract
Dihadron angular correlations in d + Au collisions at √s[subscript NN] = 200 GeV are reported as a function of the measured zero-degree calorimeter neutral energy and the forward charged hadron multiplicity in the Au-beam direction. A finite correlated yield is observed at large relative pseudorapidity (Δη) on the near side (i.e. relative azimuth Δϕ~0). This correlated yield as a function of Δη appears to scale with the dominant, primarily jet-related, away-side (Δϕ~π) yield. The Fourier coefficients of the Δϕ correlation, V[subscript n] = 〈cosnΔϕ〉, have a strong Δη dependence. In addition, it is found that V[subscript 1] is approximately inversely proportional to the mid-rapidity event multiplicity, while V[subscript 2] is independent of it with similar magnitude in the forward (d-going) and backward (Au-going) directions.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2015.05.075
