Pion-kaon correlation functions are constructed from central Au + Au STAR data taken at √sNN = 130 GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.
|Original language||English (US)|
|Number of pages||6|
|Journal||Physical Review Letters|
|Issue number||26 I|
|State||Published - Dec 31 2003|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)