Effects of bulk viscosity on hadron spectra and the Hanbury-Brown Twiss radius by causal viscous hydrodynamics |
| |
Authors: | Li Jian-Wei Ma Yu-Gang and Ma Guo-Liang |
| |
Institution: | Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; Graduate School of the Chinese Academy of Sciences, Beijing 100080, China |
| |
Abstract: | The particle spectra and Hanbury-Brown Twiss (HBT) radius
of Au+Au collisions at RHIC energy are investigated by a
hydrodynamical expanding source with both shear and bulk viscosities
(ζ). With a large width of the ratio of ζ to entropy
density s, both the particle transverse momentum spectra and the
ratio R_\rm out/R_\rm side of HBT radii in the direction of
the total transverse momentum of detected two particles (R_\rm
out) and perpendicular to both this direction and the beam
direction (R_\rm side) become a little steeper. |
| |
Keywords: | relativistic hydrodynamics bulk viscosity hadron
spectra HBT radius |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |