| |  Online-Ressource |
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| Verfasst von: | Acharya, Shreyasi [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Arslandok, Mesut [VerfasserIn] |
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| | Danisch, Meike [VerfasserIn] |
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| | Feuillard, Victor [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Kim, Jiyoung [VerfasserIn] |
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| | Kim, Minjung [VerfasserIn] |
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| | Köhler, Markus Konrad [VerfasserIn] |
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| | Leardini, Lucia [VerfasserIn] |
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| | Martin, Nicole Alice [VerfasserIn] |
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| | Ohlson, Alice [VerfasserIn] |
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| | Pachmayer, Yvonne C. [VerfasserIn] |
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| | Reygers, Klaus [VerfasserIn] |
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| | Schicker, Rainer [VerfasserIn] |
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| | Schmah, Alexander [VerfasserIn] |
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| | Schmidt, Marten Ole [VerfasserIn] |
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| | Stachel, Johanna [VerfasserIn] |
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| | Weiser, Dennis [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Yüncü, Alperen [VerfasserIn] |
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| Titel: | Longitudinal and azimuthal evolution of two-particle transverse momentum correlations in Pb-Pb collisions at √sNN=2.76 TeV |
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| Körperschaft: | ALICE (Körperschaft) [VerfasserIn] |
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| Verf.angabe: | ALICE Collaboration |
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| E-Jahr: | 2020 |
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| Jahr: | 20 March 2020 |
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| Umfang: | 13 S. |
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| Fussnoten: | ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M.K. Köhler, L. Leardini, N.A. Martin, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband, A. Yuncu [und 990 weitere] ; Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt ; Gesehen am 24.09.2020 |
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| Titel Quelle: | Enthalten in: Physics letters / B |
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| Ort Quelle: | Amsterdam : North-Holland Publ., 1967 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 804(2020) Artikel-Nummer 135375, 13 Seiten |
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| ISSN Quelle: | 1873-2445 |
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| Abstract: | This paper presents the first measurements of the charge independent (CI) and charge dependent (CD) two-particle transverse momentum correlators G2CI and G2CD in Pb-Pb collisions at sNN=2.76TeV by the ALICE collaboration. The two-particle transverse momentum correlator G2 was introduced as a measure of the momentum current transfer between neighboring system cells. The correlators are measured as a function of pair separation in pseudorapidity (Δη) and azimuth (Δφ) and as a function of collision centrality. From peripheral to central collisions, the correlator G2CI exhibits a longitudinal broadening while undergoing a monotonic azimuthal narrowing. By contrast, G2CD exhibits a narrowing along both dimensions. These features are not reproduced by models such as HIJING and AMPT. However, the observed narrowing of the correlators from peripheral to central collisions is expected to result from the stronger transverse flow profiles produced in more central collisions and the longitudinal broadening is predicted to be sensitive to momentum currents and the shear viscosity per unit of entropy density η/s of the matter produced in the collisions. The observed broadening is found to be consistent with the hypothesized lower bound of η/s and is in qualitative agreement with values obtained from anisotropic flow measurements. |
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| DOI: | doi:10.1016/j.physletb.2020.135375 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1016/j.physletb.2020.135375 |
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| | Volltext: http://www.sciencedirect.com/science/article/pii/S0370269320301799 |
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| | DOI: https://doi.org/10.1016/j.physletb.2020.135375 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1733683259 |
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| Verknüpfungen: | → Zeitschrift |
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Longitudinal and azimuthal evolution of two-particle transverse momentum correlations in Pb-Pb collisions at √sNN=2.76 TeV / Acharya, Shreyasi [VerfasserIn]; 20 March 2020 (Online-Ressource)
