Publication : t02/036
Analysis of directed flow from elliptic flow
Borghini N. (Service de Physique Théorique (PTH), Université Libre de Bruxelles (ULB), CP 225, Blvd. du Triomphe, B-1050 Bruxelles, BELGIQUE (BELGIUM))Dinh P.M. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Ollitrault J.-Y. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Abstract:Année de publication : 2002
The directed flow of particles produced in ultrarelativistic heavy ion collisions at SPS and RHIC is so small that currently available methods of analysis are at the border of applicability. Standard two-particle and flow-vector methods are biased by large nonflow correlations. On the other hand, cumulants of four-particle correlations, which are free from this bias, are plagued by large statistical errors. Here, we present a new method based on three-particle correlations, which uses the property that elliptic flow is large at these energies. This method may also be useful at intermediate energies, near the balance energy where directed flow vanishes.
Revue : Phys. Rev. C 66 014905 (2002)
DOI : 10.1103/PhysRevC.66.014905
Preprint : arXiv:nucl-th/0204017
Lien : http://link.aps.org/abstract/PRC/v66/p014905
PACS : 25.75.Ld,25.75.Gz
Numéro Exterieur : ULB-TH/02-012
Langue : Anglais
Fichier(s) à télécharger :
publi.pdf
