Long-range pseudorapidity dihadron correlations in d + Au collisions at √sNN = 200 GeV

Adamczyk, L. and Planinić, Mirko and Poljak, Nikola and Zyzak, M. (STAR Collaboration) (2015) Long-range pseudorapidity dihadron correlations in d + Au collisions at √sNN = 200 GeV. Physics Letters B, 747. pp. 265-271. ISSN 0370-2693

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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 (η) on the near side (i.e. relative azimuth φ ∼ 0). This correlated yield as a function of η appears to scale with the dominant, primarily jet-related, away-side (φ ∼ π) yield. The Fourier coefficients of the φ correlation, Vn = cosnφ , have a strong η 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.

Item Type: Article
Keywords: STAR, correlations
Date: 30 July 2015
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 1 March 2015. Received in revised form 19 May 2015. Accepted 29 May 2015. Available online 3 June 2015.
Divisions: Faculty of Science > Department of Physics
Publisher: Elsevier
Depositing User: Nikola Poljak
Date Deposited: 30 May 2016 12:42
Last Modified: 02 Dec 2017 17:58
URI: http://digre.pmf.unizg.hr/id/eprint/4873

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