Azimuthal dependence of pion interferometry at the AGS

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
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → 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.