| • • • We do not use the following data for averages, fits, limits, etc. • • • |
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BASSOMPIERRE 1995 is an extension of BASSOMPIERRE 1993 . They looked for a peak in the invariant mass of ${{\mathit e}^{+}}{{\mathit e}^{-}}$ pairs in the region ${\mathit m}_{\mathrm { {{\mathit e}^{+}} {{\mathit e}^{-}} }}$ = $1.8$ $\pm0.2$ MeV. They obtained bounds on the production rate ${{\mathit A}^{0}}$ for $\tau ({{\mathit A}^{0}}$) = $10^{-18} - 10^{-9}~$sec. They also found an excess of events in the range ${\mathit m}_{\mathrm { {{\mathit e}^{+}} {{\mathit e}^{-}} }}$ = $2.1 - 3.5$ MeV.
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