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    • Several versions

    Collective flow measurements at RHIC energies

    Esumi, Shinichi
    EPJ Web of Conferences, Vol.141 [Peer Reviewed Journal]

    • Several versions

    Collective flow measurements from the phenix experiment

    Esumi, Shinichi
    Journal of Physics G: Nuclear and Particle Physics, 2011, Vol.38(12), p.124010 (8pp) [Peer Reviewed Journal]

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    Vn measurements with forward rapidity n in 200gev au+au collisions at rhic-phenix

    Esumi, Shinichi
    Journal of Physics: Conference Series, 2011, Vol.316(1), p.012010 (5pp) [Peer Reviewed Journal]
    IOPscience (IOP Publishing)
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    Title: Vn measurements with forward rapidity n in 200gev au+au collisions at rhic-phenix
    Author: Esumi, Shinichi
    Subject: Planes ; Anisotropy ; Collisions ; Fluctuation ; Correlation ; Mathematical Analysis ; Atomic and Molecular Physics (General) (So) ; Physics of Metals (MD) ; Physics (General) (Ah);
    Description: Higher order event anisotropy v n have been measured at mid-rapidity with respect to the same order event plane n defined at the forward rapidity in 200GeV Au+Au collisions at RHIC-PHENIX experiment. Correlation between higher order event planes at different rapidity indicates the initial geometrical fluctuation is the dominant source of the higher order event anisotropy. Hydro-dynamic calculation seems to describe the measurements.
    Is part of: Journal of Physics: Conference Series, 2011, Vol.316(1), p.012010 (5pp)
    Identifier: 1742-6588 (ISSN); 1742-6596 (E-ISSN); 10.1088/1742-6596/316/1/012010 (DOI)

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    Collective flow and correlation with higher harmonic event planes

    Esumi, ShinIchi
    Central European Journal of Physics, 2012, Vol.10(6), pp.1306-1310 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: Collective flow and correlation with higher harmonic event planes
    Author: Esumi, ShinIchi
    Subject: quark gluon plasma ; collective flow ; particle correlation ; higher harmonic event anisotropy
    Description: Azimuthal event anisotropy and particle correlation have been used to analyze the collectivity of the system created in the high-energy heavy-ion collisions in order to study the properties of Quark Gluon Plasma (QGP). Higher harmonic event anisotropy is recently recognized to carry the information of initial participant geometrical fluctuation because of the finite number of participating nucleons in heavy-ion collisions. The system response after the collective expansion can be observed as higher harmonic event anisotropy, the n-th harmonic order dependence can be used to further constrain the hydro-dynamical properties of the system. The multi-particle azimuthal correlation with respect to the higher harmonic event plane can be used as a tool to understand the origin of the higher harmonic event anisotropy and its relation to the medium response from the jet-quenching as soft-hard interplay. Recent results on the higher harmonic event anisotropy measurements and an attempt of two-particle correlation analysis with respect to the higher harmonic event planes are discussed.
    Is part of: Central European Journal of Physics, 2012, Vol.10(6), pp.1306-1310
    Identifier: 1895-1082 (ISSN); 1644-3608 (E-ISSN); 10.2478/s11534-012-0122-z (DOI)

    • Several versions

    More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency

    Nonaka, Toshihiro, Kitazawa, Masakiyo, Esumi, Shinichi
    arXiv.org, Jun 10, 2017 [Peer Reviewed Journal]

    • Several versions

    A general procedure for detector-response correction of higher order cumulants

    Nonaka, Toshihiro, Kitazawa, Masakiyo, Esumi, Shinichi
    arXiv.org, May 8, 2018 [Peer Reviewed Journal]

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    Two-particle azimuthal correlation of an identified particle in high-energy heavy-ion collisions at the rhic-phenix

    Esumi, Shinichi
    Journal of Physics G: Nuclear and Particle Physics, 2009, Vol.36(6), p.064060 (6pp) [Peer Reviewed Journal]
    IOPscience (IOP Publishing)
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    Title: Two-particle azimuthal correlation of an identified particle in high-energy heavy-ion collisions at the rhic-phenix
    Author: Esumi, Shinichi
    Subject: Physics;
    Description: The recent results from two-particle azimuthal correlation analysis will be shown and discussed, especially on Mach-cone-like away-side jet modification and a ridge-like near-side structure as well as their dependence as a function of the trigger angle selection with respect to the reaction plane. A new idea to extend such analysis will be proposed at the end.
    Is part of: Journal of Physics G: Nuclear and Particle Physics, 2009, Vol.36(6), p.064060 (6pp)
    Identifier: 0954-3899 (ISSN); 1361-6471 (E-ISSN); 10.1088/0954-3899/36/6/064060 (DOI)

    • Several versions

    Importance of separated efficiencies between positively and negatively charged particles for cumulant calculations

    Nonaka, Toshihiro, Sugiura, Tetsuro, Esumi, Shinichi, Masui, Hiroshi, Luo, Xiaofeng
    arXiv.org, Apr 21, 2016 [Peer Reviewed Journal]

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    Nonflow "factorization" and a novel method to disentangle anisotropic flow and nonflow

    Kikola, Daniel, Li, Yi, Esumi, Shinichi, Wang, Fuqiang, Xie, Wei
    arXiv.org, Mar 19, 2012 [Peer Reviewed Journal]
    © ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
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    Title: Nonflow "factorization" and a novel method to disentangle anisotropic flow and nonflow
    Author: Kikola, Daniel; Li, Yi; Esumi, Shinichi; Wang, Fuqiang; Xie, Wei
    Contributor: Xie, Wei (pacrepositoryorg)
    Subject: Physics;
    Description: Presently flow and nonflow cannot be separated experimentally. Using Pythia simulations of p+p collisions we show that nonflow approximately factorizes. This fact may be used to disentangle flow and nonflow in heavy ion data by performing a two-component factorization fit to Fourier coefficients of two-particle correlations.
    Is part of: arXiv.org, Mar 19, 2012
    Identifier: 2331-8422 (E-ISSN); 10.1103/PhysRevC.86.014901 (DOI)

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    Nonflow "factorization" and a novel method to disentangle anisotropic flow and nonflow

    Kikola, Daniel, Yi, Li, Esumi, Shinichi, Wang, Fuqiang, Xie, Wei
    Phys. Rev. C 86, 014901 (2012)
    Cornell University
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    Title: Nonflow "factorization" and a novel method to disentangle anisotropic flow and nonflow
    Author: Kikola, Daniel; Yi, Li; Esumi, Shinichi; Wang, Fuqiang; Xie, Wei
    Subject: Nuclear Experiment
    Description: Presently flow and nonflow cannot be separated experimentally. Using Pythia simulations of p+p collisions we show that nonflow approximately factorizes. This fact may be used to disentangle flow and nonflow in heavy ion data by performing a two-component factorization fit to Fourier coefficients of two-particle correlations. Comment: 6 pages, 4 figures. Included discussion of the higher harmonic anisotropic flow and two-particle azimuthal correlations measured in Pb+Pb collisions at the LHC
    Is part of: Phys. Rev. C 86, 014901 (2012)
    Identifier: 1110.4809 (ARXIV ID)