Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Measurement of long-range two-particle azimuthal correlations in Z-boson tagged pp collisions at √s = 8 and 13 TeV|
|Other Titles:||Measurement of long-range two-particle azimuthal correlations in Z-boson tagged pp collisions at root s = 8 and 13 TeV|
Adam Bourdarios, C.
|Citation:||European Physical Journal C: Particles and Fields, 2020; 80(1):64-1-64-32|
|M. Aaboud … A. Duvnjak … P. Jackson … J.L. Oliver … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration]|
|Abstract:||Results are presented from the measurement by ATLAS of long-range (|Δη|>2) dihadron angular correlations in s√=8 and 13 TeV pp collisions containing a Z boson. The analysis is performed using 19.4 fb⁻¹ of s√=8 TeV data recorded during Run 1 of the LHC and 36.1 fb⁻¹ of s√=13 TeV data recorded during Run 2. Two-particle correlation functions are measured as a function of relative azimuthal angle over the relative pseudorapidity range 2<|Δη|<5 for different intervals of charged-particle multiplicity and transverse momentum. The measurements are corrected for the presence of background charged particles generated by collisions that occur during one passage of two colliding proton bunches in the LHC. Contributions to the two-particle correlation functions from hard processes are removed using a template-fitting procedure. Sinusoidal modulation in the correlation functions is observed and quantified by the second Fourier coefficient of the correlation function, v2,2, which in turn is used to obtain the single-particle anisotropy coefficient v2. The v2 values in the Z-tagged events, integrated over 0.5<pT<5 GeV, are found to be independent of multiplicity and s√, and consistent within uncertainties with previous measurements in inclusive pp collisions. As a function of charged-particle pT, the Z-tagged and inclusive v2 values are consistent within uncertainties for pT<3 GeV.|
|Rights:||© CERN for the benefit of the ATLAS collaboration 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecomm ons.org/licenses/by/4.0/. Funded by SCOAP³.|
|Appears in Collections:||Aurora harvest 4|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.