High Energy Physics Journal Club
The Ridge
by Sourendu Gupta
Friday, November 13, 2009
from
to
(Asia/Kolkata)
at Colaba Campus ( A-304 )
at Colaba Campus ( A-304 )
Description |
Trying to understand the ridge effect in hydrodynamic model Authors: Yogiro Hama, Rone Peterson G. Andrade, Frederique Grassi, Wei-Liang Qian Abstract: In a recent paper, the hydrodynamic code NeXSPheRIO was used in conjunction with STAR analysis methods to study two-particle correlations as function of Delta_eta and Delta_phi. Both the ridge-like near-side and the double-hump away-side structures were obtained. However, the mechanism of ridge production was not clear. In order to understand it, we study a simple model with only one high-energy density peripheral tube in a smooth cylindrical back-ground, with longitudinal boost invariance. The results are rather surprising, but the model does produce the triple-ridge structure with one high ridge plus two lower ones placed symmetrically with respect to the former one. The shape of this structure is rather stable in a wide range of parameters. |
Organised by | Sourendu Gupta |