Azimuthally sensitive hanbury brown-twiss interferometry in Au + Au collisions sqrt S sub NN = 200 GeV
Journal Article
·
· Physical Review Letters
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 RHIC using two-pion Hanbury Brown-Twiss (HBT) interferometry. Oscillations of the extracted HBT radii vs. 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.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High Energy and Nuclear Physics. Division of Nuclear Physics; National Science Foundation (NSF); BMBF Germany, IN2P3, RA, RPL, EMN France, EPSRC UK, FAPESP Brazil, Russian Ministry of Science and Technology, Ministry of Education NSFC China, SFOM Czech Republic, DAE, DST, CSIR Government of India, Swiss NSF (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 837746
- Report Number(s):
- LBNL-55906; R&D Project: NRNC; TRN: US0501077
- Journal Information:
- Physical Review Letters, Vol. 93, Issue 1; Other Information: Submitted to Physical Review Letters: Volume 93, No.1; Journal Publication Date: July 2, 2004; PBD: 30 Jun 2004
- Country of Publication:
- United States
- Language:
- English
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