Measurement of the correlation between flow harmonics of different order in lead-lead collisions at (Formula found) TeV with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, M. Abolins, O. S. Abouzeid, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B. S. Acharya, L. Adamczyk, D. L. Adams, J. Adelman, S. Adomeit, T. Adye, T. Agatonovic-JovinJ. A. Aguilar-Saavedra, M. Agustoni, S. P. Ahlen, F. Ahmadov, G. Aielli, H. Akerstedt, T. P.A. Åkesson, G. Akimoto, A. V. Akimov, G. L. Alberghi, J. Albert, S. Albrand, M. J. Alconada Verzini, M. Aleksa, I. N. Aleksandrov, C. Alexa, G. Alexander, G. Alexandre, T. Alexopoulos, M. Alhroob, G. Alimonti, L. Alio, J. Alison, B. M.M. Allbrooke, L. J. Allison, P. P. Allport, J. Almond, A. Aloisio, A. Alonso, T. Iizawa, The ATLAS Collaboration

    Research output: Contribution to journalArticle

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    Abstract

    Correlations between the elliptic or triangular flow coefficients υm(m = 2 or 3) and other flow harmonics υn(n = 2 to 5) are measured using (Formula Found) Pb + Pb collision data collected in 2010 by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 7 μb−1. The υmncorrelations aremeasured in midrapidity as a function of centrality, and, for events within the same centrality interval, as a function of event ellipticity or triangularity defined in a forward rapidity region. For events within the same centrality interval, υ3is found to be anticorrelated with υ2and this anticorrelation is consistent with similar anticorrelations between the corresponding eccentricities, ϵ2and ϵ3. However, it is observed that υ4increases strongly with υ2, and υ5increases strongly with both υ2and υ3. The trend and strength of the υmncorrelations for n = 4 and 5 are found to disagree with ϵmncorrelations predicted by initial-geometry models. Instead, these correlations are found to be consistent with the combined effects of a linear contribution to υnand a nonlinear term that is a function of υ2 2or of υ2υ3, as predicted by hydrodynamic models. A simple two-component fit is used to separate these two contributions. The extracted linear and nonlinear contributions to υ4and υ5are found to be consistent with previously measured event-plane correlations.

    Original languageEnglish
    Article number034903
    JournalPhysical Review C - Nuclear Physics
    DOIs
    Publication statusPublished - 2015

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    harmonics
    collisions
    detectors
    flow coefficients
    intervals
    ellipticity
    eccentricity
    hydrodynamics
    luminosity
    trends
    geometry

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Measurement of the correlation between flow harmonics of different order in lead-lead collisions at (Formula found) TeV with the ATLAS detector. / Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; Aben, R.; Abi, B.; Abolins, M.; Abouzeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B. S.; Adamczyk, L.; Adams, D. L.; Adelman, J.; Adomeit, S.; Adye, T.; Agatonovic-Jovin, T.; Aguilar-Saavedra, J. A.; Agustoni, M.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; Åkesson, T. P.A.; Akimoto, G.; Akimov, A. V.; Alberghi, G. L.; Albert, J.; Albrand, S.; Alconada Verzini, M. J.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexander, G.; Alexandre, G.; Alexopoulos, T.; Alhroob, M.; Alimonti, G.; Alio, L.; Alison, J.; Allbrooke, B. M.M.; Allison, L. J.; Allport, P. P.; Almond, J.; Aloisio, A.; Alonso, A.; Iizawa, T.; The ATLAS Collaboration.

    In: Physical Review C - Nuclear Physics, 2015.

    Research output: Contribution to journalArticle

    Aad, G, Abbott, B, Abdallah, J, Abdel Khalek, S, Abdinov, O, Aben, R, Abi, B, Abolins, M, Abouzeid, OS, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adamczyk, L, Adams, DL, Adelman, J, Adomeit, S, Adye, T, Agatonovic-Jovin, T, Aguilar-Saavedra, JA, Agustoni, M, Ahlen, SP, Ahmadov, F, Aielli, G, Akerstedt, H, Åkesson, TPA, Akimoto, G, Akimov, AV, Alberghi, GL, Albert, J, Albrand, S, Alconada Verzini, MJ, Aleksa, M, Aleksandrov, IN, Alexa, C, Alexander, G, Alexandre, G, Alexopoulos, T, Alhroob, M, Alimonti, G, Alio, L, Alison, J, Allbrooke, BMM, Allison, LJ, Allport, PP, Almond, J, Aloisio, A, Alonso, A, Iizawa, T & The ATLAS Collaboration 2015, 'Measurement of the correlation between flow harmonics of different order in lead-lead collisions at (Formula found) TeV with the ATLAS detector', Physical Review C - Nuclear Physics. https://doi.org/10.1103/PhysRevC.92.034903
    Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdel Khalek, S. ; Abdinov, O. ; Aben, R. ; Abi, B. ; Abolins, M. ; Abouzeid, O. S. ; Abramowicz, H. ; Abreu, H. ; Abreu, R. ; Abulaiti, Y. ; Acharya, B. S. ; Adamczyk, L. ; Adams, D. L. ; Adelman, J. ; Adomeit, S. ; Adye, T. ; Agatonovic-Jovin, T. ; Aguilar-Saavedra, J. A. ; Agustoni, M. ; Ahlen, S. P. ; Ahmadov, F. ; Aielli, G. ; Akerstedt, H. ; Åkesson, T. P.A. ; Akimoto, G. ; Akimov, A. V. ; Alberghi, G. L. ; Albert, J. ; Albrand, S. ; Alconada Verzini, M. J. ; Aleksa, M. ; Aleksandrov, I. N. ; Alexa, C. ; Alexander, G. ; Alexandre, G. ; Alexopoulos, T. ; Alhroob, M. ; Alimonti, G. ; Alio, L. ; Alison, J. ; Allbrooke, B. M.M. ; Allison, L. J. ; Allport, P. P. ; Almond, J. ; Aloisio, A. ; Alonso, A. ; Iizawa, T. ; The ATLAS Collaboration. / Measurement of the correlation between flow harmonics of different order in lead-lead collisions at (Formula found) TeV with the ATLAS detector. In: Physical Review C - Nuclear Physics. 2015.
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    title = "Measurement of the correlation between flow harmonics of different order in lead-lead collisions at (Formula found) TeV with the ATLAS detector",
    abstract = "Correlations between the elliptic or triangular flow coefficients υm(m = 2 or 3) and other flow harmonics υn(n = 2 to 5) are measured using (Formula Found) Pb + Pb collision data collected in 2010 by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 7 μb−1. The υm-υncorrelations aremeasured in midrapidity as a function of centrality, and, for events within the same centrality interval, as a function of event ellipticity or triangularity defined in a forward rapidity region. For events within the same centrality interval, υ3is found to be anticorrelated with υ2and this anticorrelation is consistent with similar anticorrelations between the corresponding eccentricities, ϵ2and ϵ3. However, it is observed that υ4increases strongly with υ2, and υ5increases strongly with both υ2and υ3. The trend and strength of the υm-υncorrelations for n = 4 and 5 are found to disagree with ϵm-ϵncorrelations predicted by initial-geometry models. Instead, these correlations are found to be consistent with the combined effects of a linear contribution to υnand a nonlinear term that is a function of υ2 2or of υ2υ3, as predicted by hydrodynamic models. A simple two-component fit is used to separate these two contributions. The extracted linear and nonlinear contributions to υ4and υ5are found to be consistent with previously measured event-plane correlations.",
    author = "G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and Abouzeid, {O. S.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Allbrooke, {B. M.M.} and Allison, {L. J.} and Allport, {P. P.} and J. Almond and A. Aloisio and A. Alonso and T. Iizawa and {The ATLAS Collaboration}",
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    TY - JOUR

    T1 - Measurement of the correlation between flow harmonics of different order in lead-lead collisions at (Formula found) TeV with the ATLAS detector

    AU - Aad, G.

    AU - Abbott, B.

    AU - Abdallah, J.

    AU - Abdel Khalek, S.

    AU - Abdinov, O.

    AU - Aben, R.

    AU - Abi, B.

    AU - Abolins, M.

    AU - Abouzeid, O. S.

    AU - Abramowicz, H.

    AU - Abreu, H.

    AU - Abreu, R.

    AU - Abulaiti, Y.

    AU - Acharya, B. S.

    AU - Adamczyk, L.

    AU - Adams, D. L.

    AU - Adelman, J.

    AU - Adomeit, S.

    AU - Adye, T.

    AU - Agatonovic-Jovin, T.

    AU - Aguilar-Saavedra, J. A.

    AU - Agustoni, M.

    AU - Ahlen, S. P.

    AU - Ahmadov, F.

    AU - Aielli, G.

    AU - Akerstedt, H.

    AU - Åkesson, T. P.A.

    AU - Akimoto, G.

    AU - Akimov, A. V.

    AU - Alberghi, G. L.

    AU - Albert, J.

    AU - Albrand, S.

    AU - Alconada Verzini, M. J.

    AU - Aleksa, M.

    AU - Aleksandrov, I. N.

    AU - Alexa, C.

    AU - Alexander, G.

    AU - Alexandre, G.

    AU - Alexopoulos, T.

    AU - Alhroob, M.

    AU - Alimonti, G.

    AU - Alio, L.

    AU - Alison, J.

    AU - Allbrooke, B. M.M.

    AU - Allison, L. J.

    AU - Allport, P. P.

    AU - Almond, J.

    AU - Aloisio, A.

    AU - Alonso, A.

    AU - Iizawa, T.

    AU - The ATLAS Collaboration

    PY - 2015

    Y1 - 2015

    N2 - Correlations between the elliptic or triangular flow coefficients υm(m = 2 or 3) and other flow harmonics υn(n = 2 to 5) are measured using (Formula Found) Pb + Pb collision data collected in 2010 by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 7 μb−1. The υm-υncorrelations aremeasured in midrapidity as a function of centrality, and, for events within the same centrality interval, as a function of event ellipticity or triangularity defined in a forward rapidity region. For events within the same centrality interval, υ3is found to be anticorrelated with υ2and this anticorrelation is consistent with similar anticorrelations between the corresponding eccentricities, ϵ2and ϵ3. However, it is observed that υ4increases strongly with υ2, and υ5increases strongly with both υ2and υ3. The trend and strength of the υm-υncorrelations for n = 4 and 5 are found to disagree with ϵm-ϵncorrelations predicted by initial-geometry models. Instead, these correlations are found to be consistent with the combined effects of a linear contribution to υnand a nonlinear term that is a function of υ2 2or of υ2υ3, as predicted by hydrodynamic models. A simple two-component fit is used to separate these two contributions. The extracted linear and nonlinear contributions to υ4and υ5are found to be consistent with previously measured event-plane correlations.

    AB - Correlations between the elliptic or triangular flow coefficients υm(m = 2 or 3) and other flow harmonics υn(n = 2 to 5) are measured using (Formula Found) Pb + Pb collision data collected in 2010 by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 7 μb−1. The υm-υncorrelations aremeasured in midrapidity as a function of centrality, and, for events within the same centrality interval, as a function of event ellipticity or triangularity defined in a forward rapidity region. For events within the same centrality interval, υ3is found to be anticorrelated with υ2and this anticorrelation is consistent with similar anticorrelations between the corresponding eccentricities, ϵ2and ϵ3. However, it is observed that υ4increases strongly with υ2, and υ5increases strongly with both υ2and υ3. The trend and strength of the υm-υncorrelations for n = 4 and 5 are found to disagree with ϵm-ϵncorrelations predicted by initial-geometry models. Instead, these correlations are found to be consistent with the combined effects of a linear contribution to υnand a nonlinear term that is a function of υ2 2or of υ2υ3, as predicted by hydrodynamic models. A simple two-component fit is used to separate these two contributions. The extracted linear and nonlinear contributions to υ4and υ5are found to be consistent with previously measured event-plane correlations.

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