The ρ{variant}0 → π+π-π+π- decay in effective lagrangians incorporating vector-mesons

A. Bramon, A. Grau, G. Pancheri

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The ρ{variant}0 → π+π-π+π- branching ratio is predicted to be (0.5±0.1)×10-4, (1.7±0.2)×10-4 and(4.0±0.5)×10-4 in the "hidden symmetry" scheme, conventional vector-meson dominance and the "massive Yang-Mills" approach, respectively. The corresponding experimental upper bound is 2×10-4. © 1993.
Original languageEnglish
Pages (from-to)190-194
JournalPhysics Letters B
Issue number1-2
Publication statusPublished - 4 Nov 1993


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