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Updated measurement of the $e^+e^- to omega pi^0 to pi^0pi^0gamma$ cross section with the SND detector

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 نشر من قبل Leonid Kardapoltsev
 تاريخ النشر 2016
  مجال البحث
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We analyze a 37 pb$^{-1}$ data sample collected with the SND detector at the VEPP-2000 $e^+e^-$ collider in the center-of-mass energy range 1.05--2.00 GeV and present an updated measurement of the $e^+e^- to omega pi^0 to pi^0pi^0gamma$ cross section. In particular, we correct the mistake in radiative correction calculation made in our previous measurement based on a part of the data. The measured cross section is fitted with the vector meson dominance model with three $rho$-like states and used to test the conserved vector current hypothesis in the $tau^-toomegapi^- u_{tau}$ decay.



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