Measurement of emission-angle anisotropy via long-range angular correlations with high-pThadrons in d+Au and p+p collisions at √sNN=200 GeV

Scientific paper - Original scientific paper

• Author: A. Adare
• Author: ...
• Author: Mihael Makek; MBZ: 256122
• Author: ...
• Author: L. Zou
• Collaboration: PHENIX Collaboration
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

We present measurements of two-particle angular correlations between high-transverse-momentum (2<pT<11 GeV/c) π0observed at midrapidity (|η|<0.35) and particles produced either at forward (3.1<η<3.9) or backward (−3.7<η<−3.1) rapidity in d+Au and p+p collisions at √sNN=200 GeV. The azimuthal angle correlations for particle pairs with this large rapidity gap in the Au-going direction exhibit a characteristic structure that persists up to pT≈6 GeV/c and which strongly depends on collision centrality, which is a similar characteristic to the hydrodynamical particle flow in A+A collisions. The structure is absent in the d-going direction as well as in p+p collisions, in the transverse-momentum range studied. The results indicate that the structure is shifted in the Au-going direction toward more central collisions, similar to the charged-particle pseudorapidity distributions.

• Keywords (english): correlations; anisotropy; PHENIX
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C
• Numbering: vol. 98, no. 1, 014912
• p-ISSN: 2469-9985
• e-ISSN: 2469-9993
• DOI: https://doi.org/10.1103/PhysRevC.98.014912
• URN:NBN: urn:nbn:hr:217:870388
• Publication: 2018
• Document URL: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.98.014912
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2018 American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 27 November 2017; revised manuscript received 23 March 2018; published 26 July 2018.
• Created on: 2020-02-29 21:01:50