π0→e+e- and η→μ+μ- decays reexamined

Ll Ametller, A. Bramon, E. Massó

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41 Citations (Scopus)


The rare π0→e+e- and η→μ+μ- decays are calculated in different schemes, which are seen to be essentially equivalent to and produce the same results as conventional vector-meson dominance. We obtain the theoretical predictions B(π0→e+e-)=(6.41±0.19)×10-8 and B(η→μ+μ-)=(1.14-0.03+0.07)×10-5, where B(P→l+l-)=Γ(P→l+l-)Γ(P→γγ), in reasonable agreement with recent experimental data. © 1993 The American Physical Society.
Original languageEnglish
Pages (from-to)3388-3391
JournalPhysical Review D
Issue number7
Publication statusPublished - 1 Jan 1993


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