Radiative jet energy loss in a three-dimensional hydrodynamical medium and high p{sub T} azimuthal asymmetry of {pi}{sub 0} suppression at mid and forward rapidity in Au+Au collisions at {radical}(s{sub NN})=200 GeV
- Department of Physics, McGill University, Montreal, Quebec, H3A 2T8 (Canada)
- Department of Physics, Nagoya University, Nagoya 464-8602 (Japan)
- Department of Physics, Duke University, Durham, North Carolina 27708 (United States)
The nuclear modification factor R{sub AA} for {pi}{sub 0} production in Au+Au collisions at {radical}(s)=200A GeV is calculated and studied at high transverse momenta p{sub T}. The soft thermalized nuclear medium is described within the framework of relativistic ideal three-dimensional hydrodynamics. The energy loss of partonic jets is evaluated in the context of gluon bremsstrahlung in the thermalized partonic matter. We provide a systematic analysis of the azimuthal asymmetry of {pi}{sub 0} suppression at high p{sub T} in central and noncentral collisions at mid and forward rapidity. The determination of R{sub AA} as a function of p{sub T} at different azimuthal angles and different rapidities makes for a stringent test of our theoretical understanding of jet energy loss over a variety of in-medium path lengths, temperatures, and initial partonic jet energies. This lays the groundwork for a tomography of the nuclear medium.
- OSTI ID:
- 21067997
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 76, Issue 6; Other Information: DOI: 10.1103/PhysRevC.76.064907; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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