Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-05-19
Phys.Rev.Lett.93:182301,2004
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.93.182301
Within hydrodynamic approach, we study the Bose-Einstein correlation of identical pions by taking into account both event-by-event fluctuating initial conditions and continuous pion emission during the whole development of the hot and dense matter formed in high-energy collisions. Considerable deviations occur, compared to the usual hydro calculations with smooth initial conditions and a sudden freeze-out on a well defined hypersurface. Comparison with data at RHIC shows that, despite rather rough approximation we used here, this description can give account of the $m_T$ dependence of $R_L$ and $R_s$ and improves considerably the one for $R_o$ with respect to the usual version.
Otavio Socolowski Jr.
Grassi Frederique
Hama Yogiro
Kodama Tadayuki
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