HAL : in2p3-00668924, version 1
 arXiv : 1001.5052
 Charged and strange hadron elliptic flow in Cu+Cu collisions at $\sqrt(s_(NN))$ = 62.4 and 200 GeVAbelev B.I., Erazmus B., Estienne M., Geromitsos A., Kabana S. et alPhysical Review C 81 (2010) 044902 - http://hal.in2p3.fr/in2p3-00668924
Physique/Physique Nucléaire Expérimentale
Charged and strange hadron elliptic flow in Cu+Cu collisions at $\sqrt{s_{NN}}$ = 62.4 and 200 GeV
B.I. Abelev, B. Erazmus1, M. Estienne1, A. Geromitsos1, S. Kabana1, C. Roy1, R. Sahoo1
 1 : SUBATECH - Laboratoire SUBATECH Nantes http://www-subatech.in2p3.fr/ CNRS : UMR6457 – IN2P3 – Université de Nantes – École Nationale Supérieure des Mines - Nantes 4, rue Alfred Kastler - 44070 Nantes Cedex 03 France
We present the results of an elliptic flow analysis of Cu+Cu collisions recorded with the STAR detector at 62.4 and 200GeV. Elliptic flow as a function of transverse momentum is reported for different collision centralities for charged hadrons and strangeness containing hadrons $K_{S}^{0}$, $\Lambda$, $\Xi$, $\phi$ in the midrapidity region $|eta|<1.0$. Significant reduction in systematic uncertainty of the measurement due to non-flow effects has been achieved by correlating particles at midrapidity, $|\eta|<1.0$, with those at forward rapidity, $2.5<|\eta|<4.0$. We also present azimuthal correlations in p+p collisions at 200 GeV to help estimating non-flow effects. To study the system-size dependence of elliptic flow, we present a detailed comparison with previously published results from Au+Au collisions at 200 GeV. We observe that $v_{2}$($p_{T}$) of strange hadrons has similar scaling properties as were first observed in Au+Au collisions, i.e.: (i) at low transverse momenta, $p_T<2GeV/c$, $v_{2}$ scales with transverse kinetic energy, $m_{T}-m$, and (ii) at intermediate $p_T$, \$2
STAR

Articles dans des revues sans comité de lecture
2010
 Physical Review C (Phys. Rev. C) Publisher American Physical Society ISSN 0556-2813 (eISSN : 1089-490X)
81
044902

SUBATECH-Plasma
18 pages, 14 figures - see paper for full list of authors
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1001.5052
 in2p3-00668924, version 1 http://hal.in2p3.fr/in2p3-00668924 oai:hal.in2p3.fr:in2p3-00668924 Contributeur : Dominique Girod <> Soumis le : Vendredi 10 Février 2012, 16:32:20 Dernière modification le : Mardi 10 Avril 2012, 11:28:22