Filmer, EK;
Grant, CM;
Jackson, P;
Kong, AXY;
Pandya, HD;
Potti, H;
Ruggeri, TA;
... Huseynov, N; + view all
(2024)
Measurement of the Centrality Dependence of the Dijet Yield in Formula Presented Collisions at Formula Presented with the ATLAS Detector.
Physical Review Letters
, 132
(10)
, Article 102301. 10.1103/PhysRevLett.132.102301.
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Abstract
ATLAS measured the centrality dependence of the dijet yield using 165 nb − 1 of p + Pb data collected at √ s NN = 8.16 TeV in 2016. The event centrality, which reflects the p + Pb impact parameter, is characterized by the total transverse energy registered in the Pb-going side of the forward calorimeter. The central-to-peripheral ratio of the scaled dijet yields, R CP , is evaluated, and the results are presented as a function of variables that reflect the kinematics of the initial hard parton scattering process. The R CP shows a scaling with the Bjorken x of the parton originating from the proton, x p , while no such trend is observed as a function of x Pb . This analysis provides unique input to understanding the role of small proton spatial configurations in p + Pb collisions by covering parton momentum fractions from the valence region down to x p ∼ 10 − 3 and x Pb ∼ 4 × 10 − 4 .
Type: | Article |
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Title: | Measurement of the Centrality Dependence of the Dijet Yield in Formula Presented Collisions at Formula Presented with the ATLAS Detector |
Location: | United States |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.132.102301 |
Publisher version: | http://dx.doi.org/10.1103/physrevlett.132.102301 |
Language: | English |
Additional information: | © 2024 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/10189844 |
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