Non-identical particle correlation analysis as a probe of transverse flow

Details Non-identical particle correlation analysis as a probe of transverse flow Non-identical particle correlation analysis as a probe of transverse flow

2002-12-24

arxiv.org/abs/nucl-ex/0212026v1

Nucl.Phys. A715 (2003) 591-594

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 2 figures, 1 table, Contribution to Quark Matter 2002, Nantes, France, July 2002

Scientific paper

10.1016/S0375-9474(02)01539-7

Non-identical two particle correlation functions probe asymmetries between the average space-time emission points of different particle species. The system collective expansion would produce such asymmetry because massive particles, such as protons, are on average more pushed towards the edge of the system, than lighter ones, i.e. pions. Measuring pion-kaon, pion-proton and kaon-proton correlation functions, using the STAR detector, we show that the data are consistent with the effect of transverse flow in Au-Au collisions at $\sqrt{s_{NN}} = 130$ GeV.

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