Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV
Abstract Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to qua...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/131974 |
| _version_ | 1826188720497229824 |
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| author | Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Escalante Del Valle, A. Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Escalante Del Valle, A. Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. |
| author_sort | Sirunyan, A. M |
| collection | MIT |
| description | Abstract
Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to quantify these anisotropies. The higher-order harmonics can be induced by the same order anisotropies (linear response) or by the combined influence of several lower order anisotropies (nonlinear response) in the initial state. The mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles are measured as functions of transverse momentum and centrality in $$\mathrm {PbPb}$$PbPb collisions at nucleon-nucleon center-of-mass energies $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV with the CMS detector. The results are compared with viscous hydrodynamic calculations using several different initial conditions, as well as microscopic transport model calculations. None of the models provides a simultaneous description of the mixed higher-order flow harmonics and nonlinear response coefficients. |
| first_indexed | 2024-09-23T08:03:59Z |
| format | Article |
| id | mit-1721.1/131974 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:03:59Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1319742023-12-22T19:09:54Z Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Escalante Del Valle, A. Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. Massachusetts Institute of Technology. Department of Physics Abstract Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to quantify these anisotropies. The higher-order harmonics can be induced by the same order anisotropies (linear response) or by the combined influence of several lower order anisotropies (nonlinear response) in the initial state. The mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles are measured as functions of transverse momentum and centrality in $$\mathrm {PbPb}$$PbPb collisions at nucleon-nucleon center-of-mass energies $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV with the CMS detector. The results are compared with viscous hydrodynamic calculations using several different initial conditions, as well as microscopic transport model calculations. None of the models provides a simultaneous description of the mixed higher-order flow harmonics and nonlinear response coefficients. 2021-09-20T17:41:11Z 2021-09-20T17:41:11Z 2020-06-13 2020-06-26T12:53:30Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131974 The European Physical Journal C. 2020 Jun 13;80(6):534 PUBLISHER_CC en https://doi.org/10.1140/epjc/s10052-020-7834-9 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ CERN for the benefit of the CMS collaboration application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Escalante Del Valle, A. Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV |
| title | Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV |
| title_full | Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV |
| title_fullStr | Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV |
| title_full_unstemmed | Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV |
| title_short | Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in $$\mathrm {PbPb}$$PbPb collisions at $$\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 2.76$$sNN=2.76 and 5.02$$\,\text {TeV}$$TeV |
| title_sort | mixed higher order anisotropic flow and nonlinear response coefficients of charged particles in mathrm pbpb pbpb collisions at sqrt smash b s mathrm nn 2 76 snn 2 76 and 5 02 text tev tev |
| url | https://hdl.handle.net/1721.1/131974 |
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