PPT Slide

Muons in PHENIX, MDC2

• ~6000 Central Au-Au events processed, with J/ys mixed in both arms

• ~2000 Minimum bias events processed

• Dimuon mass spectra examined versus various analysis cuts

South Arm

Unlike-sign dimuons with no cuts.

Unlike-sign dimuons compared to like-sign dimuons after analysis cuts. Discrepencies shown to come from two nearly identical ghost-tracks.

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