Azimuthal anisotropy of dijet events in PbPb collisions at sNN = 5.02 TeV
File(s)JHEP07(2023)139.pdf (1.4 MB)
Published version
Author(s)
Type
Journal Article
Abstract
The path-length dependent parton energy loss within the dense partonic medium created in lead-lead collisions at a nucleon-nucleon center-of-mass energy of √sNN = 5.02 TeV is studied by determining the azimuthal anisotropies for dijets with high transverse momentum. The data were collected by the CMS experiment in 2018 and correspond to an integrated luminosity of 1.69 nb−1. For events containing back-to-back jets, correlations in relative azimuthal angle and pseudorapidity (η) between jets and hadrons, and between two hadrons, are constructed. The anisotropies are expressed as the Fourier expansion coefficients vn, n = 2–4 of these azimuthal distributions. The dijet vn values are extracted from long-range (1.5 < |∆η| < 2.5) components of these correlations, which suppresses the background contributions from jet fragmentation processes. Positive
dijet v2 values are observed which increase from central to more peripheral events, while the v3 and v4 values are consistent with zero within experimental uncertainties.
dijet v2 values are observed which increase from central to more peripheral events, while the v3 and v4 values are consistent with zero within experimental uncertainties.
Date Issued
2023-07-17
Date Acceptance
2023-01-30
Citation
The Journal of High Energy Physics, 2023, 2023 (7)
ISSN
1029-8479
Publisher
SpringerOpen
Journal / Book Title
The Journal of High Energy Physics
Volume
2023
Issue
7
Copyright Statement
© CERN, for the benefit of the CMS Collaboration.
Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001061876200002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
CHARGED-PARTICLES
ELLIPTIC FLOW
Hadron-Hadron Scattering
Heavy-Ion Collision
Jets
MOMENTUM DEPENDENCE
Particle Correlations and Fluctuations
Physical Sciences
Physics
Physics, Particles & Fields
Science & Technology
TRANSVERSE-MOMENTUM
Publication Status
Published
Article Number
ARTN 139