Azimuthal asymmetry of neutral pion emission in Au+Au reactions at 1 GeV/u
Conference
·
OSTI ID:64045
- Kernfysisch Versneller Instituut, Groningen (Netherlands)
The azimuthal angle distributions of neutral pions at midrapidity from Au+Au reactions at 1 GeV/u incident energy have been measured. An enhanced emission of {pi}{sup 0} perpendicular to the reaction plane is observed. The azimuthal asymmetry is dependent on the {pi}{sup 0} momentum. The integrated yield of {pi}{sup 0} emission in-the-reaction-plane is suppressed by 10% with respect to the out-of-plane yield. This fact suggests that the main reason for the observed azimuthal asymmetry is the enhanced absorption of fast pions in the reaction plane by the spectator matter.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- OSTI ID:
- 64045
- Report Number(s):
- LBL--35984; CONF-9310315--; ON: DE95000804
- Country of Publication:
- United States
- Language:
- English
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