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

Dihadron angular correlations in d + Au collisions at √s NN = 200 GeVare 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 (Δ η) on the near side (i.e. relative azimuth Δ Φ ~ 0). This correlated yield as a function of Δη appears to scale with the dominant, primarily jet-related, away-side (Δ Φ ~ π) yield. The Fourier coefficients of the ΔΦ correlation, V n = cosn ΔΦ , have a strong Δη dependence. In addition, it is found that V 1 is approximately inversely proportional to the mid-rapidity event multiplicity, while V 2 is independent of it with similar magnitude in the forward (d-going) and backward (Au-going) directions.
Authors:
 [1]
  1. AGH Univ. of Science and Technology, Cracow (Poland). et al.
Publication Date:
Report Number(s):
BNL-108411-2015-JA
Journal ID: ISSN 0370-2693; PII: S0370269315004190; TRN: US1601008
Grant/Contract Number:
AC02-06CH11357; SC00112704
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 747; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
STAR Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider
OSTI Identifier:
1213879
Alternate Identifier(s):
OSTI ID: 1209234; OSTI ID: 1226046

Adamczyk, L. Long-range pseudorapidity dihadron correlations in d + Au collisions at √SNN = 200 GeV. United States: N. p., Web. doi:10.1016/j.physletb.2015.05.075.
Adamczyk, L. Long-range pseudorapidity dihadron correlations in d + Au collisions at √SNN = 200 GeV. United States. doi:10.1016/j.physletb.2015.05.075.
Adamczyk, L. 2015. "Long-range pseudorapidity dihadron correlations in d + Au collisions at √SNN = 200 GeV". United States. doi:10.1016/j.physletb.2015.05.075.
@article{osti_1213879,
title = {Long-range pseudorapidity dihadron correlations in d + Au collisions at √SNN = 200 GeV},
author = {Adamczyk, L.},
abstractNote = {Dihadron angular correlations in d + Au collisions at √sNN = 200 GeVare 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 (Δ η) on the near side (i.e. relative azimuth Δ Φ ~ 0). This correlated yield as a function of Δη appears to scale with the dominant, primarily jet-related, away-side (Δ Φ ~ π) yield. The Fourier coefficients of the ΔΦ correlation, Vn = cosn ΔΦ , 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.},
doi = {10.1016/j.physletb.2015.05.075},
journal = {Physics Letters. Section B},
number = C,
volume = 747,
place = {United States},
year = {2015},
month = {6}
}