Anisotropic flow of identified hadrons in Xe-Xe collisions at √<i>s</i><sub>NN</sub>=5<i>.</i>44 TeV



Acharya, S, Adamova, D, Adler, A, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Ahuja, I
et al (show 1014 more authors) (2021) Anisotropic flow of identified hadrons in Xe-Xe collisions at √<i>s</i><sub>NN</sub>=5<i>.</i>44 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2021 (10). 152-.

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Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>Measurements of elliptic (<jats:italic>v</jats:italic><jats:sub>2</jats:sub>) and triangular (<jats:italic>v</jats:italic><jats:sub>3</jats:sub>) flow coefficients of <jats:italic>π</jats:italic><jats:sup>±</jats:sup>, K<jats:sup>±</jats:sup>, p+<jats:inline-formula><jats:alternatives><jats:tex-math>$$ \overline{\mathrm{p}} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mi>p</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math></jats:alternatives></jats:inline-formula>, <jats:inline-formula><jats:alternatives><jats:tex-math>$$ {\mathrm{K}}_{\mathrm{S}}^0 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> </mml:math></jats:alternatives></jats:inline-formula>, and Λ+<jats:inline-formula><jats:alternatives><jats:tex-math>$$ \overline{\Lambda} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mi>Λ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math></jats:alternatives></jats:inline-formula> obtained with the scalar product method in Xe-Xe collisions at <jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{s_{\mathrm{NN}}} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi> <mml:mi>NN</mml:mi> </mml:msub> </mml:msqrt> </mml:math></jats:alternatives></jats:inline-formula> = 5<jats:italic>.</jats:italic>44 TeV are presented. The results are obtained in the rapidity range |<jats:italic>y</jats:italic>| <jats:italic>&lt;</jats:italic> 0<jats:italic>.</jats:italic>5 and reported as a function of transverse momentum, <jats:italic>p</jats:italic><jats:sub>T</jats:sub>, for several collision centrality classes. The flow coefficients exhibit a particle mass dependence for <jats:italic>p</jats:italic><jats:sub>T</jats:sub><jats:italic>&lt;</jats:italic> 3 GeV/<jats:italic>c</jats:italic>, while a grouping according to particle type (i.e., meson and baryon) is found at intermediate transverse momenta (3 <jats:italic>&lt; p</jats:italic><jats:sub>T</jats:sub><jats:italic>&lt;</jats:italic> 8 GeV/<jats:italic>c</jats:italic>). The magnitude of the baryon <jats:italic>v</jats:italic><jats:sub>2</jats:sub> is larger than that of mesons up to <jats:italic>p</jats:italic><jats:sub>T</jats:sub> = 6 GeV/<jats:italic>c</jats:italic>. The centrality dependence of the shape evolution of the <jats:italic>p</jats:italic><jats:sub>T</jats:sub>-differential <jats:italic>v</jats:italic><jats:sub>2</jats:sub> is studied for the various hadron species. The <jats:italic>v</jats:italic><jats:sub>2</jats:sub> coefficients of <jats:italic>π</jats:italic><jats:sup>±</jats:sup>, K<jats:sup>±</jats:sup>, and p+<jats:inline-formula><jats:alternatives><jats:tex-math>$$ \overline{\mathrm{p}} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mi>p</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math></jats:alternatives></jats:inline-formula> are reproduced by MUSIC hydrodynamic calculations coupled to a hadronic cascade model (UrQMD) for <jats:italic>p</jats:italic><jats:sub>T</jats:sub><jats:italic>&lt;</jats:italic> 1 GeV/<jats:italic>c</jats:italic>. A comparison with <jats:italic>v</jats:italic><jats:sub>n</jats:sub> measurements in the corresponding centrality intervals in Pb-Pb collisions at <jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{s_{\mathrm{NN}}} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi> <mml:mi>NN</mml:mi> </mml:msub> </mml:msqrt> </mml:math></jats:alternatives></jats:inline-formula> = 5<jats:italic>.</jats:italic>02 TeV yields an enhanced <jats:italic>v</jats:italic><jats:sub>2</jats:sub> in central collisions and diminished value in semicentral collisions.</jats:p>

Item Type: Article
Uncontrolled Keywords: Heavy Ion Experiments
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 12 May 2022 14:41
Last Modified: 14 Mar 2024 20:44
DOI: 10.1007/JHEP10(2021)152
Open Access URL: https://link.springer.com/article/10.1007/JHEP10(2...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3154687