| Online-Ressource |
Verfasst von: | Abelev, Betty [VerfasserIn]  |
| Angelov, Venelin [VerfasserIn]  |
| Busch, Oliver [VerfasserIn]  |
| Glässel, Peter [VerfasserIn]  |
| Klein, Jochen [VerfasserIn]  |
| Leardini, Lucia [VerfasserIn]  |
| Lohner, Daniel [VerfasserIn]  |
| Lu, Xianguo [VerfasserIn]  |
| Maire, Antonin [VerfasserIn]  |
| Oyama, Ken [VerfasserIn]  |
| Pachmayer, Yvonne C. [VerfasserIn]  |
| Reygers, Klaus [VerfasserIn]  |
| Schicker, Rainer [VerfasserIn]  |
| Stachel, Johanna [VerfasserIn]  |
| Stiller, Johannes Hendrik [VerfasserIn]  |
| Völkl, Martin [VerfasserIn]  |
| Windelband, Bernd [VerfasserIn]  |
| Winn, Michael [VerfasserIn]  |
| Zimmermann, Alice [VerfasserIn]  |
Titel: | Elliptic flow of identified hadrons in Pb-Pb collisions at √sNN=2.76 TeV |
Körperschaft: | ALICE [VerfasserIn]  |
Verf.angabe: | the ALICE collaboraiton* |
E-Jahr: | 2015 |
Jahr: | 29 June 2015 |
Umfang: | 41 S. |
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 |
Titel Quelle: | Enthalten in: Journal of high energy physics |
Ort Quelle: | Berlin : Springer, 1997 |
Jahr Quelle: | 2015 |
Band/Heft Quelle: | (2015), 6, Artikel-ID 190, Seite 1-41 |
ISSN Quelle: | 1029-8479 |
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. |
DOI: | doi:10.1007/JHEP06(2015)190 |
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 |
| DOI: https://doi.org/10.1007/JHEP06(2015)190 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1763164853 |
Verknüpfungen: | → Zeitschrift |
Elliptic flow of identified hadrons in Pb-Pb collisions at √sNN=2.76 TeV / Abelev, Betty [VerfasserIn]; 29 June 2015 (Online-Ressource)