Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Asilar, E;
Bergauer, T;
Brandstetter, J;
... Woods, N; + view all
(2019)
Jet Shapes of Isolated Photon-Tagged Jets in Pb-Pb and pp Collisions at root S-NN=5.02 TeV.
Physical Review Letters
, 122
, Article 152001. 10.1103/PhysRevLett.122.152001.
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Abstract
The modification of jet shapes in Pb-Pb collisions, relative to those in p p collisions, is studied for jets associated with an isolated photon. The data were collected with the CMS detector at the LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Jet shapes are constructed from charged particles with track transverse momenta ( p T ) above 1 GeV / c in annuli around the axes of jets with p jet T > 30 GeV / c associated with an isolated photon with p γ T > 60 GeV / c . The jet shape distributions are consistent between peripheral Pb-Pb and p p collisions, but are modified for more central Pb-Pb collisions. In these central Pb-Pb events, a larger fraction of the jet momentum is observed at larger distances from the jet axis compared to p p , reflecting the interaction between the partonic medium created in heavy ion collisions and the traversing partons.
| Type: | Article |
|---|---|
| Title: | Jet Shapes of Isolated Photon-Tagged Jets in Pb-Pb and pp Collisions at root S-NN=5.02 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.122.152001 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.122.152001 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, RADIATIVE ENERGY-LOSS, MOMENTUM DEPENDENCE, SUPPRESSION |
| 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 |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10089596 |
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