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Search for the f1(1285) → π+π-π0 decay with the VES detector

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Abstract

The isospin-violating decay f 1(1285) → π+π-π0 has been studied at the VES facility. This study is based on the statistics acquired in π- Be interactions at 27, 36.6 and 41 GeV/c in the diffractive reaction π- N → (f 1π-)N . The f 1(1285) → π+π-π0 decay is observed. The preliminary ratio of decay probabilities BR(f 1(1285) → π+π-π0) to BR(f 1(1285) → ηπ+π-). BR(η → γγ) is ∼ 2% .

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Authors and Affiliations

  1. IHEP, 142281, Protvino, Moscow region, Russia

    V. Dorofeev, R. Dzhelyadin, A. Ekimov, Yu. Gavrilov, Yu. Gouz, A. Ivashin, V. Kabachenko, I. Kachaev, A. Karyukhin, Yu. Khokhlov, V. Konstantinov, M. Makouski, V. Matveev, A. Myagkov, V. Nikolaenko, A. Ostankov, B. Polyakov, D. Ryabchikov, N. Shalanda, M. Soldatov, A. A. Solodkov, A. V. Solodkov, O. Solovianov, E. Starchenko & A. Zaitsev

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  1. V. Dorofeev
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  2. R. Dzhelyadin
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  3. A. Ekimov
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  4. Yu. Gavrilov
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  5. Yu. Gouz
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  6. A. Ivashin
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  7. V. Kabachenko
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  8. I. Kachaev
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  9. A. Karyukhin
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  10. Yu. Khokhlov
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  11. V. Konstantinov
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  12. M. Makouski
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  13. V. Matveev
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  14. A. Myagkov
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  15. V. Nikolaenko
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  16. A. Ostankov
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  17. B. Polyakov
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  18. D. Ryabchikov
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  19. N. Shalanda
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  20. M. Soldatov
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  21. A. A. Solodkov
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  22. A. V. Solodkov
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  23. O. Solovianov
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  24. E. Starchenko
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  25. A. Zaitsev
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Corresponding author

Correspondence to V. Nikolaenko.

Additional information

Hayian Gao

Original article based on material presented at HADRON 2007.

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Dorofeev, V., Dzhelyadin, R., Ekimov, A. et al. Search for the f1(1285) → π+π-π0 decay with the VES detector. Eur. Phys. J. A 38, 149–154 (2008). https://doi.org/10.1140/epja/i2008-10664-8

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  • DOI: https://doi.org/10.1140/epja/i2008-10664-8

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