Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-08-06
Phys.Rev.C84:024903,2011
Physics
Nuclear Physics
Nuclear Theory
One LaTeX file for text and four eps files for figures
Scientific paper
10.1103/PhysRevC.84.024903
A measurement for studying the mass dependence of the dilepton interferometry in relativistic heavy-ion collision experiments as a tool to characterize the quark-gluon phase is proposed. In calculations involving dileptons, we show that the mass dependence of radii extracted from the virtual photon (dilepton) interferometry provide access to the development of collective flow with time. It is argued that the non-monotonic variation of HBT radii with invariant mass of the lepton pairs signals the formation of quark gluon plasma in heavy ion collisions. Our proposal of experimentally measuring the ratio, $R_{\mathrm out}/R_{\mathrm side}$ for dileptons can be used to estimate the average life times of the partonic as well as the hadronic phases.
Alam Jan-e
Mohanty Bedangadas
Mohanty Payal
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