Abstract
We report K/π fluctuations from Au+Au collisions at √sNN=19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/π fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb+Pb collisions at √sNN=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/π fluctuations and results for charge-separated fluctuations. We observe that the K/π fluctuations scale with the charged particle multiplicity density.
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | 092301/1-092301/6 |
| Number of pages | 6 |
| Journal | Physical Review Letters |
| Volume | 103 |
| Issue number | 9 |
| Publication status | Published - 2009 |