Azimuthally sensitive Hanbury Brown-Twiss interferometry in Au+Au collisions at sqrt[sNN]=200 GeV

We present the results of a systematic study of the shape of the pion distribution in coordinate space at freeze-out in Au+Au collisions at BNL RHIC using two-pion Hanbury Brown-Twiss (HBT) interferometry. Oscillations of the extracted HBT radii versus emission angle indicate sources elongated perpendicular to the reaction plane. The results indicate that the pressure and expansion time of the collision system are not sufficient to completely quench its initial shape.

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Author:J. Adams, Clemens Adler, Jens Berger, Thomas Dietel, Dominik Bernhard Flierl, Thorsten Kollegger, Jens Sören Lange, Reinhard Stock, Christof Struck, et al., STAR Collaboration
URN:urn:nbn:de:hebis:30-19091
Document Type:Article
Language:English
Date of Publication (online):14.10.2005
Year of first Publication:2004
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Source:Phys. Rev. Lett. 93, 012301 (2004), ©2004 The American Physical Society, http://link.aps.org/abstract/PRL/v93/e012301
HeBIS PPN:191490822
Institutes:Physik
Dewey Decimal Classification:530 Physik
PACS-Classification:25.75.Gz Particle correlations and fluctuations
25.75.Ld Collective flow
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen ohne Print on Demand

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