Abstract
Two-pion correlation functions are analyzed at midrapidity for three systems (14.6A GeV/c Si+Al, Si+Au, and 11.6A GeV/c Au+Au), seven distinct centrality conditions, and different kT bins in the range 0.1-0.5 GeV/c. Source reference frames are determined from fits to the Yano-Koonin source parametrization. Bertsch-Pratt radius parameters are shown to scale linearly with both number of projectile and total participants as obtained from a Glauber model calculation. A finite lifetime parameter that increases linearly with system/centrality is also reported. The mT dependences of the Bertsch-Pratt radii for the central Si+Au and central Au+Au systems differ only by an overall normalization factor given by the measured system/centrality dependence.
| Original language | English |
|---|---|
| Article number | 054906 |
| Pages (from-to) | 549061-5490615 |
| Number of pages | 4941555 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 66 |
| Issue number | 5 |
| DOIs | |
| State | Published - Nov 1 2002 |