Lambda/K0S ratio - Year 2 and Year 4 Au+Au @ 200 GeV

Lambda/K0S ratio: The Lambda/K0S ratio in Year 2 and Year 4 Au+Au @ 200 GeV. The data to the left of the vertical line comes from Year 2, the data to the right from Year 4. This shows the extent and reach of the Year 4 data. The plot was first shown at Quark Matter 2006.