  The quantum statistics (QS) correlations of identical bosons are well known
to be sensitive to the space-time extent and dynamics of the particle emitting
source in high-energy collisions. While two-pion correlations are most often
experimentally measured, the QS correlations of three-pions and higher are
rarely explored. We present a set of techniques to isolate and analyze 3- and
4-pion QS correlations. In particular, the technique of built correlation
functions allows one to more easily study the effects of quantum coherence at
finite relative momenta instead of at the unmeasured intercept of correlation
functions.
