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$omega to 3pi$ and $omegapi^{0}$ transition form factor revisited

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 نشر من قبل Miguel Albaladejo
 تاريخ النشر 2020
  مجال البحث
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In light of recent experimental results, we revisit the dispersive analysis of the $omega to 3pi$ decay amplitude and of the $omegapi^0$ transition form factor. Within the framework of the Khuri-Treiman equations, we show that the $omega to 3pi$ Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. Furthermore, we show that at low energies the $omegapi^0$ transition form factor obtained from our determination of the $omega to 3pi$ amplitude is consistent with the data from MAMI and NA60 experiments.


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