Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/129972
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Type: | Journal article |
Title: | Medium-induced modification of Z-tagged charged particle yields in Pb + Pb collisions at 5.02 TeV with the ATLAS detector |
Author: | Aad, G. Abbott, B. Abbott, D.C. Abed Abud, A. Abeling, K. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Achkar, B. Adam, L. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Adelman, J. Adersberger, M. et al. |
Citation: | Physical Review Letters, 2021; 126(7):072301-1-072301-20 |
Publisher: | American Physical Society |
Issue Date: | 2021 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | G. Aad … D. Duvnjak … P. Jackson … J.L. Oliver … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration] |
Abstract: | The yield of charged particles opposite to a Z boson with large transverse momentum (pT) is measured in 260 pb⁻¹ of pp and 1.7 nb⁻¹ of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The Z boson tag is used to select hard-scattered partons with specific kinematics, and to observe how their showers are modified as they propagate through the quark-gluon plasma created in Pb + Pb collisions. Compared with pp collisions, charged-particle yields in Pb + Pb collisions show significant modifications as a function of charged-particle pT in a way that depends on event centrality and Z boson pT. The data are compared with a variety of theoretical calculations and provide new information about the medium-induced energy loss of partons in a pT regime difficult to measure through other channels. |
Keywords: | ATLAS Collaboration |
Rights: | © 2021 CERN, for the ATLAS Collaboration 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. |
DOI: | 10.1103/physrevlett.126.072301 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1103/physrevlett.126.072301 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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hdl_129972.pdf | Published Version | 473.68 kB | Adobe PDF | View/Open |
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