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Title: Long-range pseudorapidity dihadron correlations in d+ Au collisions at s NN = 200   GeV

Journal Article · · Physics Letters. B
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In this study, dihadron angular correlations in d+Au collisions at √sNN=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, Vn={cosnΔΦ}, have a strong Δη dependence. In addition, it is found that V1 is approximately inversely proportional to the mid-rapidity event multiplicity, while V2 is independent of it with similar magnitude in the forward (d-going) and backward (Au-going) directions.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
STAR Collaboration
Grant/Contract Number:
AC02-06CH11357; SC0012704
OSTI ID:
1213879
Alternate ID(s):
OSTI ID: 1209234; OSTI ID: 1226046
Report Number(s):
BNL-108411-2015-JA; S0370269315004190; PII: S0370269315004190
Journal Information:
Physics Letters. B, Journal Name: Physics Letters. B Vol. 747 Journal Issue: C; ISSN 0370-2693
Publisher:
ElsevierCopyright Statement
Country of Publication:
Netherlands
Language:
English
Citation Metrics:
Cited by: 74 works
Citation information provided by
Web of Science

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