Abstract (data
abstract)
CERN-LHC.
Comparison of measured and simulated opposite-sign pion pair correlation functions for high and low sphericity intervals. The
C(q) in spherical events are relatively flat at unity, while the low sphericity correlation functions exhibit a very pronounced slope. This finding supports previous assumptions about the mini-jet origin of background correlations in interferometry analyses and demonstrates that PYTHIA describes two-pion correlations well in the absence of Bose-Einstein correlations.