Neighboring azimuthal bin-bin multiplicity correlation as a direct measure for the shear viscosity in relativistic heavy ion collisions

作者：Li Lin^*; Wang Mei-Juan; Wu Yuan-Fang

来源：Chinese Physics C, 2013, 37(9): 094102.

DOI：10.1088/1674-1137/37/9/094102

• neighboring azimuthal bin-bin multiplicity correlation
• shear viscosity
• relativistic heavy ion collision

Neighboring azimuthal bin-bin multiplicity correlation is suggested to be a good measure for internal layer-to-layer interactions of the formed matter in relativistic heavy ion collisions. It is shown to be directly related to the shear viscosity of the formed matter: As an application of this method, the shear viscosity in the samples generated by a multi-phase transport model (AMPT) is estimated. The results are in qualitative agreement with the theoretical calculation from microscopic interactions, i.e., the larger the scattering cross section, the smaller the shear viscosity.

• 出版日期2013-9
• 单位华中师范大学; 中国地质大学（北京）