Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV
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...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2023
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| Online Access: | https://hdl.handle.net/1721.1/151171 |
| _version_ | 1826188354440396800 |
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| author | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | 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
s
NN
$$ \sqrt{s_{\textrm{NN}}} $$
= 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. |
| first_indexed | 2024-09-23T07:58:23Z |
| format | Article |
| id | mit-1721.1/151171 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T07:58:23Z |
| publishDate | 2023 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1511712024-01-29T20:03:08Z Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Massachusetts Institute of Technology. Department of Physics 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 s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 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. 2023-07-25T19:32:54Z 2023-07-25T19:32:54Z 2023-07-17 2023-07-23T03:11:24Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/151171 Journal of High Energy Physics. 2023 Jul 17;2023(7):139 PUBLISHER_CC en https://doi.org/10.1007/JHEP07(2023)139 Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P. S. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV |
| title | Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV |
| title_full | Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV |
| title_fullStr | Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV |
| title_full_unstemmed | Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV |
| title_short | Azimuthal anisotropy of dijet events in PbPb collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 5.02 TeV |
| title_sort | azimuthal anisotropy of dijet events in pbpb collisions at s nn sqrt s textrm nn 5 02 tev |
| url | https://hdl.handle.net/1721.1/151171 |
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