Publication : t06/077
Eccentricity fluctuations and elliptic flow at RHIC
Bhalerao R.S. (Dpt Theoretical Physics, Tata Institute of Fundamental Research (TIFR), Homi Bhabha Road, Mumbai 400 005, INDIA)Ollitrault J.-Y. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Abstract:Année de publication : 2006
Fluctuations in nucleon positions can affect the spatial eccentricity of the overlap zone in nucleus-nucleus collisions. We show that elliptic flow should be scaled by different eccentricities depending on which method is used for the flow analysis. These eccentricities are estimated semi-analytically. When $v_2$ is analyzed from 4-particle cumulants, or using the event plane from directed flow in a zero-degree calorimeter, the result is shown to be insensitive to eccentricity fluctuations.
Revue : Phys. Lett. B 641 260-264 (2006)
DOI : 10.1016/j.physletb.2006.08.055
Preprint : arXiv:nucl-th/0607009
PACS : 25.75.Ld, 24.10.Nz
Numéro Exterieur : TIFR/TH/06-20
Langue : Anglais
Fichier(s) à télécharger :
publi.pdf
