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| Verfasst von: | Abelev, Betty [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Busch, Oliver [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Klein, Jochen [VerfasserIn] |
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| | Leardini, Lucia [VerfasserIn] |
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| | Lohner, Daniel [VerfasserIn] |
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| | Lu, Xianguo [VerfasserIn] |
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| | Maire, Antonin [VerfasserIn] |
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| | Oyama, Ken [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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| | Stachel, Johanna [VerfasserIn] |
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| | Stiller, Johannes Hendrik [VerfasserIn] |
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| | Völkl, Martin [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Winn, Michael [VerfasserIn] |
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| | Zimmermann, Alice [VerfasserIn] |
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| Titel: | Elliptic flow of identified hadrons in Pb-Pb collisions at √sNN=2.76 TeV |
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| Körperschaft: | ALICE [VerfasserIn] |
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| Verf.angabe: | the ALICE collaboraiton* |
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| E-Jahr: | 2015 |
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| Jahr: | 29 June 2015 |
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| Umfang: | 41 S. |
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| Fussnoten: | *The ALICE collaboration: B. Abelev, V. Anguelov, O. Busch, P. Glaessel, J. Klein, L. Leardini, D. Lohner, X.G. Lu, A. Maire, K. Oyama, Y. Pachmayer, K. Reygers, R. Schicker, J. Stachel, J. Stiller, M.A. Voelkl, B. Windelband, M. Winn, A. Zimmermann [und 927 weitere Personen] ; Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt ; Gesehen am 19.07.2021 |
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| Titel Quelle: | Enthalten in: Journal of high energy physics |
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| Ort Quelle: | Berlin : Springer, 1997 |
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| Jahr Quelle: | 2015 |
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| Band/Heft Quelle: | (2015), 6, Artikel-ID 190, Seite 1-41 |
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| ISSN Quelle: | 1029-8479 |
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| Abstract: | The elliptic flow coefficient (v 2) of identified particles in Pb-Pb collisions at sNN−−−√=2.76 TeV was measured with the ALICE detector at the Large Hadron Collider (LHC). The results were obtained with the Scalar Product method, a two-particle correlation technique, using a pseudo-rapidity gap of |Δη| > 0.9 between the identified hadron under study and the reference particles. The v 2 is reported for π ±, K±, K 0S , p+p¯¯¯, ϕ, Λ+Λ¯¯¯¯, Ξ−+Ξ¯¯¯¯+ and Ω−+Ω¯¯¯¯+ in several collision centralities. In the low transverse momentum (p T) region, p T < 3 GeV/c, v 2(p T) exhibits a particle mass dependence consistent with elliptic flow accompanied by the transverse radial expansion of the system with a common velocity field. The experimental data for π ± and the combined K± and K 0S results, are described fairly well by hydrodynamic calculations coupled to a hadronic cascade model (VISHNU) for central collisions. However, the same calculations fail to reproduce the v 2(p T) for p+p¯¯¯, ϕ, Λ+Λ¯¯¯¯ and Ξ−+Ξ¯¯¯¯+. For transverse momentum values larger than about 3 GeV/c, particles tend to group according to their type, i.e. mesons and baryons. The present measurements exhibit deviations from the number of constituent quark (NCQ) scaling at the level of ±20% for p T > 3 GeV/c. |
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| DOI: | doi:10.1007/JHEP06(2015)190 |
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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: https://doi.org/10.1007/JHEP06(2015)190 |
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| | DOI: https://doi.org/10.1007/JHEP06(2015)190 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1763164853 |
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| Verknüpfungen: | → Zeitschrift |
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Elliptic flow of identified hadrons in Pb-Pb collisions at √sNN=2.76 TeV / Abelev, Betty [VerfasserIn]; 29 June 2015 (Online-Ressource)
