Azimuthal dependence of pion interferometry at the AGS

Authors
Lisa, MA Ajitanand, NN Alexander, JM Anderson, M Best, D Brady, FP Case, T Caskey, W Cebra, D Chance, JL Chung, P Cole, B Crowe, K Das, AC Draper, JE Gilkes, ML Gushue, S Heffner, M Hirsch, AS Hjort, EL Huo, L Justice, M Kaplan, M Keane, D Kintner, JC Klay, J Krofcheck, D Lacey, RA Lauret, J Liu, H Liu, YM McGrath, R Milosevich, Z Odyniec, G Olson, DL Panitkin, SY Pinkenburg, C Porile, NT Rai, G Ritter, HG Romero, JL Scharenberg, R Schroeder, L Srivastava, B Stone, NTB Symons, TJM Wells, R Whitfield, J Wienold, T Witt, R Wood, L Zhang, WN
Citation
Ma. Lisa et al., Azimuthal dependence of pion interferometry at the AGS, PHYS LETT B, 496(1-2), 2000, pp. 1-8
Citations number
51
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
496
Issue
1-2
Year of publication
2000
Pages
1 - 8
Database
ISI
SICI code
0370-2693(200012)496:1-2<1:ADOPIA>2.0.ZU;2-J
Abstract
Two-pion correlation functions, measured as a function of azimuthal emissio n angle with respect to the reaction plane, provide novel information on th e anisotropic shape and orientation of the pion-emitting zone formed in hea vy ion collisions. We present the first experimental determination of this information, for semi-central Au + Au collisions at 2-6 A GeV. The source e xtension perpendicular to the reaction plane is greater than the extension in the plane, and tilt of the pion source in coordinate space is found to b e opposite its tilt in momentum space. (C) 2000 Elsevier Science B.V. All r ights reserved.