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Study of the electromagnetic transition form-factor in ω→π0μ+μ− decay |
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| Authors: | R.I. Dzhelyadin S.V. Golovkin A.S. Konstantinov V.F. Konstantinov V.P. Kubarovski L.G. Landsberg V.A. Mukhin V.F. Obraztsov T.I. Petrunina Yu.D. Prokoshkin V.A. Viktorov A.M. Zaitsev |
| Affiliation: | Institute for High Energy Physics, Serpukhov, USSR |
| Abstract: | Sixty events of the rare eletromagnetic decay ω→π0μ+μ? have been detected. The branching ratio for this decay been obtained to be BR(ω→π0μ+μ?) = (9.6 ± 2.3) × 10?5. The effective mass spectrum for muon pairs has been measured and the electromagnetic transition form-factor for the vertex ωπ0, Fω(mμμ2;mπ20) = (1 ? mμμ2/Λ2)?1, has been determined, Λ = (0.65 ± 0.03) GeV/c2. The results are compared with the vector-meson dominance model. |
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