TY  - JOUR
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Andrejkovic, J.
AU  - Bergauer, T.
AU  - Chatterjee, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13121
AB  - The azimuthal anisotropy of Υ(1S) mesons in high-multiplicity proton-lead collisions is studied using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy of 8.16 TeV. The Υ(1S) mesons are reconstructed using their dimuon decay channel. The anisotropy is characterized by the second Fourier harmonic coefficients, found using a two-particle correlation technique, in which the Υ(1S) mesons are correlated with charged hadrons. A large pseudorapidity gap is used to suppress short-range correlations. Nonflow contamination from the dijet background is removed using a low-multiplicity subtraction method, and the results are presented as a function of Υ(1S) transverse momentum. The azimuthal anisotropies are smaller than those found for charmonia in proton-lead collisions at the same collision energy, but are consistent with values found for Υ(1S) mesons in lead-lead interactions at a nucleon-nucleon center-of-mass energy of 5.02 TeV.
T2  - Physics Letters B
T1  - Study of azimuthal anisotropy of Υ(1S) mesons in pPb collisions at √𝑠NN = 8.16 TeV
VL  - 850
SP  - 138518
DO  - 10.1016/j.physletb.2024.138518
ER  - 

@article{
author = "Tumasyan, A. and Adam, W. and Andrejkovic, J. and Bergauer, T. and Chatterjee, S. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2024",
abstract = "The azimuthal anisotropy of Υ(1S) mesons in high-multiplicity proton-lead collisions is studied using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy of 8.16 TeV. The Υ(1S) mesons are reconstructed using their dimuon decay channel. The anisotropy is characterized by the second Fourier harmonic coefficients, found using a two-particle correlation technique, in which the Υ(1S) mesons are correlated with charged hadrons. A large pseudorapidity gap is used to suppress short-range correlations. Nonflow contamination from the dijet background is removed using a low-multiplicity subtraction method, and the results are presented as a function of Υ(1S) transverse momentum. The azimuthal anisotropies are smaller than those found for charmonia in proton-lead collisions at the same collision energy, but are consistent with values found for Υ(1S) mesons in lead-lead interactions at a nucleon-nucleon center-of-mass energy of 5.02 TeV.",
journal = "Physics Letters B",
title = "Study of azimuthal anisotropy of Υ(1S) mesons in pPb collisions at √𝑠NN = 8.16 TeV",
volume = "850",
pages = "138518",
doi = "10.1016/j.physletb.2024.138518"
}

Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2024). Study of azimuthal anisotropy of Υ(1S) mesons in pPb collisions at √𝑠NN = 8.16 TeV. in Physics Letters B, 850, 138518.
https://doi.org/10.1016/j.physletb.2024.138518

Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Adžić P, Đorđević M, Milenović P, Milošević J. Study of azimuthal anisotropy of Υ(1S) mesons in pPb collisions at √𝑠NN = 8.16 TeV. in Physics Letters B. 2024;850:138518.
doi:10.1016/j.physletb.2024.138518 .

Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Study of azimuthal anisotropy of Υ(1S) mesons in pPb collisions at √𝑠NN = 8.16 TeV" in Physics Letters B, 850 (2024):138518,
https://doi.org/10.1016/j.physletb.2024.138518 . .

TY  - JOUR
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Andrejkovic, J.
AU  - Bergauer, T.
AU  - Chatterjee, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
AU  - Nađđerđ, Laslo
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13093
AB  - The hydrodynamic flow-like behavior of charged hadrons in high-energy lead-lead collisions is studied through multiparticle correlations. The elliptic anisotropy values based on different orders of multiparticle cumulants, v 2{2k}, are measured up to the tenth order (k = 5) as functions of the collision centrality at a nucleon-nucleon center-of-mass energy of      s NN     $$ \sqrt{s_{\textrm{NN}}} $$  = 5.02 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 0.607 nb −1. A hierarchy is observed between the coefficients, with v 2{2} > v 2{4} ≳ v 2{6} ≳ v 2{8} ≳ v 2{10}. Based on these results, centrality-dependent moments for the fluctuation-driven event-by-event v 2 distribution are determined, including the skewness, kurtosis and, for the first time, superskewness. Assuming a hydrodynamic expansion of the produced medium, these moments directly probe the initial-state geometry in high-energy nucleus-nucleus collisions.
T2  - Journal of High Energy Physics
T1  - Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeV
VL  - 2024
IS  - 2
SP  - 1
EP  - 45
DO  - 10.1007/JHEP02(2024)106
ER  - 

@article{
author = "Tumasyan, A. and Adam, W. and Andrejkovic, J. and Bergauer, T. and Chatterjee, S. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan and Nađđerđ, Laslo",
year = "2024",
abstract = "The hydrodynamic flow-like behavior of charged hadrons in high-energy lead-lead collisions is studied through multiparticle correlations. The elliptic anisotropy values based on different orders of multiparticle cumulants, v 2{2k}, are measured up to the tenth order (k = 5) as functions of the collision centrality at a nucleon-nucleon center-of-mass energy of      s NN     $$ \sqrt{s_{\textrm{NN}}} $$  = 5.02 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 0.607 nb −1. A hierarchy is observed between the coefficients, with v 2{2} > v 2{4} ≳ v 2{6} ≳ v 2{8} ≳ v 2{10}. Based on these results, centrality-dependent moments for the fluctuation-driven event-by-event v 2 distribution are determined, including the skewness, kurtosis and, for the first time, superskewness. Assuming a hydrodynamic expansion of the produced medium, these moments directly probe the initial-state geometry in high-energy nucleus-nucleus collisions.",
journal = "Journal of High Energy Physics",
title = "Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeV",
volume = "2024",
number = "2",
pages = "1-45",
doi = "10.1007/JHEP02(2024)106"
}

Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., Adžić, P., Đorđević, M., Milenović, P., Milošević, J.,& Nađđerđ, L.. (2024). Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeV. in Journal of High Energy Physics, 2024(2), 1-45.
https://doi.org/10.1007/JHEP02(2024)106

Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Chatterjee S, Adžić P, Đorđević M, Milenović P, Milošević J, Nađđerđ L. Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeV. in Journal of High Energy Physics. 2024;2024(2):1-45.
doi:10.1007/JHEP02(2024)106 .

Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Chatterjee, S., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, Nađđerđ, Laslo, "Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeV" in Journal of High Energy Physics, 2024, no. 2 (2024):1-45,
https://doi.org/10.1007/JHEP02(2024)106 . .