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Symmetry plane correlations in Pb–Pb collisions at sNN=2.76 TeV.

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Title: Symmetry plane correlations in Pb–Pb collisions at sNN=2.76 TeV.
Authors: Acharya, S.1 (AUTHOR), Adamová, D.2 (AUTHOR), Adler, A.3 (AUTHOR), Aglieri Rinella, G.4 (AUTHOR), Agnello, M.5 (AUTHOR), Agrawal, N.6 (AUTHOR), Ahammed, Z.7 (AUTHOR), Ahmad, S.8 (AUTHOR), Ahn, S. U.9 (AUTHOR), Ahuja, I.10 (AUTHOR), Akindinov, A.11 (AUTHOR), Al-Turany, M.12 (AUTHOR), Aleksandrov, D.11 (AUTHOR), Alessandro, B.13 (AUTHOR), Alfanda, H. M.14 (AUTHOR), Alfaro Molina, R.15 (AUTHOR), Ali, B.8 (AUTHOR), Alici, A.16 (AUTHOR), Alizadehvandchali, N.17 (AUTHOR), Alkin, A.4 (AUTHOR)
Source: European Physical Journal C -- Particles & Fields. Jul2023, Vol. 83 Issue 7, p1-21. 21p.
Subjects: Model airplanes, Symmetry, Quark matter, Bayesian analysis, Properties of matter, Particle emissions
Abstract: A newly developed observable for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb–Pb collisions at s NN = 2.76 TeV with ALICE. This so-called Gaussian Estimator allows for the first time the study of these quantities without the influence of correlations between different flow amplitudes. The centrality dependence of various correlations between two, three and four symmetry planes is presented. The ordering of magnitude between these symmetry plane correlations is discussed and the results of the Gaussian Estimator are compared with measurements of previously used estimators. The results utilizing the new estimator lead to significantly smaller correlations than reported by studies using the Scalar Product method. Furthermore, the obtained symmetry plane correlations are compared to state-of-the-art hydrodynamic model calculations for the evolution of heavy-ion collisions. While the model predictions provide a qualitative description of the data, quantitative agreement is not always observed, particularly for correlators with significant non-linear response of the medium to initial state anisotropies of the collision system. As these results provide unique and independent information, their usage in future Bayesian analysis can further constrain our knowledge on the properties of the QCD matter produced in ultrarelativistic heavy-ion collisions. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Symmetry plane correlations in Pb–Pb collisions at sNN=2.76 TeV.
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  Data: <searchLink fieldCode="AR" term="%22Acharya%2C+S%2E%22">Acharya, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Adamová%2C+D%2E%22">Adamová, D.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Adler%2C+A%2E%22">Adler, A.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aglieri+Rinella%2C+G%2E%22">Aglieri Rinella, G.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agnello%2C+M%2E%22">Agnello, M.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agrawal%2C+N%2E%22">Agrawal, N.</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahammed%2C+Z%2E%22">Ahammed, Z.</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahmad%2C+S%2E%22">Ahmad, S.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahn%2C+S%2E+U%2E%22">Ahn, S. U.</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ahuja%2C+I%2E%22">Ahuja, I.</searchLink><relatesTo>10</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Akindinov%2C+A%2E%22">Akindinov, A.</searchLink><relatesTo>11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Al-Turany%2C+M%2E%22">Al-Turany, M.</searchLink><relatesTo>12</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aleksandrov%2C+D%2E%22">Aleksandrov, D.</searchLink><relatesTo>11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alessandro%2C+B%2E%22">Alessandro, B.</searchLink><relatesTo>13</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alfanda%2C+H%2E+M%2E%22">Alfanda, H. M.</searchLink><relatesTo>14</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alfaro+Molina%2C+R%2E%22">Alfaro Molina, R.</searchLink><relatesTo>15</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ali%2C+B%2E%22">Ali, B.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alici%2C+A%2E%22">Alici, A.</searchLink><relatesTo>16</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alizadehvandchali%2C+N%2E%22">Alizadehvandchali, N.</searchLink><relatesTo>17</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alkin%2C+A%2E%22">Alkin, A.</searchLink><relatesTo>4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Jul2023, Vol. 83 Issue 7, p1-21. 21p.
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  Data: <searchLink fieldCode="DE" term="%22Model+airplanes%22">Model airplanes</searchLink><br /><searchLink fieldCode="DE" term="%22Symmetry%22">Symmetry</searchLink><br /><searchLink fieldCode="DE" term="%22Quark+matter%22">Quark matter</searchLink><br /><searchLink fieldCode="DE" term="%22Bayesian+analysis%22">Bayesian analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Properties+of+matter%22">Properties of matter</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+emissions%22">Particle emissions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A newly developed observable for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb–Pb collisions at s NN = 2.76 TeV with ALICE. This so-called Gaussian Estimator allows for the first time the study of these quantities without the influence of correlations between different flow amplitudes. The centrality dependence of various correlations between two, three and four symmetry planes is presented. The ordering of magnitude between these symmetry plane correlations is discussed and the results of the Gaussian Estimator are compared with measurements of previously used estimators. The results utilizing the new estimator lead to significantly smaller correlations than reported by studies using the Scalar Product method. Furthermore, the obtained symmetry plane correlations are compared to state-of-the-art hydrodynamic model calculations for the evolution of heavy-ion collisions. While the model predictions provide a qualitative description of the data, quantitative agreement is not always observed, particularly for correlators with significant non-linear response of the medium to initial state anisotropies of the collision system. As these results provide unique and independent information, their usage in future Bayesian analysis can further constrain our knowledge on the properties of the QCD matter produced in ultrarelativistic heavy-ion collisions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1140/epjc/s10052-023-11658-w
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