AZIMUTHAL ANISOTROPY IN S+AU REACTIONS AT 200 A GEV

Authors
AGGARWAL MM ANGELIS ALS ANTONENKO V AWES TC BADYAL SK BARLAG C BHALLA KB BHATIA VS BLUME C BOCK D BOHNE EM BUCHER D BUIJS A CHATTOPADHYAY S CLAUSSEN A CLEWING G DAS AC",DEVANAND,"DONNI P DURIEUX E MAJUMDAR MRD FOKA P FOKIN S GANTI MS GARPMAN S GEURTS F GHOSH TK GLASOW R GUPTA SK GUSTAFSSON HA GUTBROD HH HARTIG M HE XC HOLKER G IPPOLITOV M IZYCKI M KACHROO S KALECHOFSKY H KAMERMANS R KAMPERT KH KARADJEV K KOLB BW LANGBEIN I LANGHEINRICH J LEBEDEV A LOHNER H LOKNATHAN S MANKO V MARTIN M MITTRA IS MOOKERJEE S NAEF H NAYAK SK NAYAK TK NIKOLAEV S NYSTRAND J OBENSHAIN FE OSKARSSON A OTTERLUND I PEITZMANN T PLASIL F PURSCHKE M RANIWALA S RAO NK ROSSELET L ROTERS B RUBIO JM SAINI S SAMBYAL S SANTO R SCHMIDT HR SIEMIARCZUK T SIEMSSEN RH SINHA BC SLEGT S SODERSTROM K SOLOMEY N SORENSEN SP STEFANEK G STEINHAEUSER P STENLUND E STER A STUKEN D TRIVEDI MD TWENHOEFEL C VANEIJNDHOVEN N VANHEERINGEN WH VINOGRADOV A VIYOGI YP WEBER S YOUNG GR
Citation
Mm. Aggarwal et al., AZIMUTHAL ANISOTROPY IN S+AU REACTIONS AT 200 A GEV, Physics letters. Section B, 403(3-4), 1997, pp. 390-396
Citations number
20
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
403
Issue
3-4
Year of publication
1997
Pages
390 - 396
Database
ISI
SICI code
0370-2693(1997)403:3-4<390:AAISRA>2.0.ZU;2-F
Abstract
Azimuthal correlations of photons produced at mid-rapidity in 200 A Ge V S + Au collisions have been studied using a preshower photon multipl icity detector in the WA93 experiment. The Fourier expansion method ha s been employed to estimate the event plane via the anisotropy of the event as a function of centrality. The event plane correlation techniq ue has been used to determine the true event anisotropy, beyond the an isotropy which arises due to finite multiplicity. The VENUS event gene rator with rescattering and proper simulation of the detector response can explain only a portion of the observed anisotropy. The residual a nisotropy is found to be of the order of 5% for semi-central collision s. This suggests that directed collective flow of the produced particl es is present at SPS energies. (C) 1997 Published by Elsevier Science B.V.