PHOBOS Multiplicity Detector
The measured multiplicity can be used to select events with anomalous particle yield.
For example, pion emission from a 4 fm DCC* with an energy density of ? = 120 MeV/fm3 at y = -1 produces a 170 particle anomaly which can be observed in the PHOBOS multiplicity distributions.
* DCC = Disordered Chiral Condensate