Sub-leading flow modes in PbPb collisions at √sNN =2.76 TeV from HYDJET++ model
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The LHC results on the sub-leading flow modes in PbPb collisions at 2.76 TeV, related to initial-state fluctuations, are analyzed and interpreted within the HYDJET++ model. Using the newly introduced Principal Component Analysis (PCA) method applied to two-particle azimuthal correlations extracted from the model calculations, the leading and the sub-leading flow modes are studied as a function of the transverse momentum (pT) over a wide centrality range. The leading modes of the elliptic (v(1) 2 ) and triangular (v(1) 3 ) flow calculated within the HYDJET++ model reproduce rather well the v2{2} and v3{2} coefficients experimentally measured using the two-particle correlations. Within the pT ≤3 GeV/c range where hydrodynamics dominates, the sub-leading flow effects are greatest at the highest pT of around 3 GeV/c. The sub-leading elliptic flow mode (v(2) 2 ), which corresponds to n =2 harmonic, has a small non-zero value and slowly increases from central to peripheral collisions, while ...the sub-leading triangular flow mode (v(2) 3 ), which corresponds to n =3 harmonic, is even smaller and does not depend on centrality. For n =2, the relative magnitude of the effect measured with respect to the leading flow mode shows a shallow minimum for semi-central collisions and increases for very central and for peripheral collisions. For n =3 case, there is no centrality dependence. The sub-leading flow mode results obtained from the HYDJET++ model are in a rather good agreement with the experimental measurements of the CMS Collaboration. © The Authors, published by EDP Sciences.
Извор:
6th International Conference on New Frontiers in Physics - ICNFP 2017; OACCrete, Greece, August 17th-29th 2017, 2018, 182, 02086-Издавач:
- EPJ Web of Conferences
DOI: 10.1051/epjconf/201818202086
ISSN: 2101-6275
WoS: 000567649800088
Scopus: 2-s2.0-85053180521
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https://www.epj-conferences.org/10.1051/epjconf/201818202086https://vinar.vin.bg.ac.rs/handle/123456789/7874
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VinčaTY - CONF AU - Milošević, Jovan AU - Ćirković, Predrag AU - Devetak, Damir AU - Đorđević, Miloš AU - Stojanović, Milan PY - 2018 UR - https://www.epj-conferences.org/10.1051/epjconf/201818202086 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7874 AB - The LHC results on the sub-leading flow modes in PbPb collisions at 2.76 TeV, related to initial-state fluctuations, are analyzed and interpreted within the HYDJET++ model. Using the newly introduced Principal Component Analysis (PCA) method applied to two-particle azimuthal correlations extracted from the model calculations, the leading and the sub-leading flow modes are studied as a function of the transverse momentum (pT) over a wide centrality range. The leading modes of the elliptic (v(1) 2 ) and triangular (v(1) 3 ) flow calculated within the HYDJET++ model reproduce rather well the v2{2} and v3{2} coefficients experimentally measured using the two-particle correlations. Within the pT ≤3 GeV/c range where hydrodynamics dominates, the sub-leading flow effects are greatest at the highest pT of around 3 GeV/c. The sub-leading elliptic flow mode (v(2) 2 ), which corresponds to n =2 harmonic, has a small non-zero value and slowly increases from central to peripheral collisions, while the sub-leading triangular flow mode (v(2) 3 ), which corresponds to n =3 harmonic, is even smaller and does not depend on centrality. For n =2, the relative magnitude of the effect measured with respect to the leading flow mode shows a shallow minimum for semi-central collisions and increases for very central and for peripheral collisions. For n =3 case, there is no centrality dependence. The sub-leading flow mode results obtained from the HYDJET++ model are in a rather good agreement with the experimental measurements of the CMS Collaboration. © The Authors, published by EDP Sciences. PB - EPJ Web of Conferences C3 - 6th International Conference on New Frontiers in Physics - ICNFP 2017; OACCrete, Greece, August 17th-29th 2017 T1 - Sub-leading flow modes in PbPb collisions at √sNN =2.76 TeV from HYDJET++ model VL - 182 SP - 02086 DO - 10.1051/epjconf/201818202086 ER -
@conference{ author = "Milošević, Jovan and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Stojanović, Milan", year = "2018", abstract = "The LHC results on the sub-leading flow modes in PbPb collisions at 2.76 TeV, related to initial-state fluctuations, are analyzed and interpreted within the HYDJET++ model. Using the newly introduced Principal Component Analysis (PCA) method applied to two-particle azimuthal correlations extracted from the model calculations, the leading and the sub-leading flow modes are studied as a function of the transverse momentum (pT) over a wide centrality range. The leading modes of the elliptic (v(1) 2 ) and triangular (v(1) 3 ) flow calculated within the HYDJET++ model reproduce rather well the v2{2} and v3{2} coefficients experimentally measured using the two-particle correlations. Within the pT ≤3 GeV/c range where hydrodynamics dominates, the sub-leading flow effects are greatest at the highest pT of around 3 GeV/c. The sub-leading elliptic flow mode (v(2) 2 ), which corresponds to n =2 harmonic, has a small non-zero value and slowly increases from central to peripheral collisions, while the sub-leading triangular flow mode (v(2) 3 ), which corresponds to n =3 harmonic, is even smaller and does not depend on centrality. For n =2, the relative magnitude of the effect measured with respect to the leading flow mode shows a shallow minimum for semi-central collisions and increases for very central and for peripheral collisions. For n =3 case, there is no centrality dependence. The sub-leading flow mode results obtained from the HYDJET++ model are in a rather good agreement with the experimental measurements of the CMS Collaboration. © The Authors, published by EDP Sciences.", publisher = "EPJ Web of Conferences", journal = "6th International Conference on New Frontiers in Physics - ICNFP 2017; OACCrete, Greece, August 17th-29th 2017", title = "Sub-leading flow modes in PbPb collisions at √sNN =2.76 TeV from HYDJET++ model", volume = "182", pages = "02086", doi = "10.1051/epjconf/201818202086" }
Milošević, J., Ćirković, P., Devetak, D., Đorđević, M.,& Stojanović, M.. (2018). Sub-leading flow modes in PbPb collisions at √sNN =2.76 TeV from HYDJET++ model. in 6th International Conference on New Frontiers in Physics - ICNFP 2017; OACCrete, Greece, August 17th-29th 2017 EPJ Web of Conferences., 182, 02086. https://doi.org/10.1051/epjconf/201818202086
Milošević J, Ćirković P, Devetak D, Đorđević M, Stojanović M. Sub-leading flow modes in PbPb collisions at √sNN =2.76 TeV from HYDJET++ model. in 6th International Conference on New Frontiers in Physics - ICNFP 2017; OACCrete, Greece, August 17th-29th 2017. 2018;182:02086. doi:10.1051/epjconf/201818202086 .
Milošević, Jovan, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Stojanović, Milan, "Sub-leading flow modes in PbPb collisions at √sNN =2.76 TeV from HYDJET++ model" in 6th International Conference on New Frontiers in Physics - ICNFP 2017; OACCrete, Greece, August 17th-29th 2017, 182 (2018):02086, https://doi.org/10.1051/epjconf/201818202086 . .