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arXiv · hep-ex/0109036

Bose-Einstein Correlations of Neutral and Charged Pions in Hadronic Z Decays

L3 Collaboration
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Abstract

Bose-Einstein correlations of both neutral and like-sign charged pion pairs are measured in a sample of 2 million hadronic Z decays collected with the L3 detector at LEP. The analysis is performed in the four-momentum difference range 300 MeV < Q < 2 GeV. The radius of the neutral pion source is found to be smaller than that of charged pions. This result is in qualitative agreement with the string fragmentation model.

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L3 Collaboration. 2001-09-24. Bose-Einstein Correlations of Neutral and Charged Pions in Hadronic Z Decays. https://doi.org/10.1016/s0370-2693(01)01270-9

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