Measurement of the branching fraction for ψ(3770) → γχc0

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DOI Доступ к ресурсу на сайте издателя			10.1016/j.physletb.2015.11.074

Title: Measurement of the branching fraction for ψ(3770) → γχc0
Creator: Ablikim, M.
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Ai, X. C.
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Chelkov, G. A.
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Achasov, M. N.
Date: 2016
DOI: 10.1016/j.physletb.2015.11.074
Description: By analyzing a data set of 2.92 fb−12.92 fb−1 of e+e−e+e− collision data taken at View the MathML sources=3.773 GeV and 106.41×106106.41×106ψ(3686)ψ(3686) decays taken at View the MathML sources=3.686 GeV with the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for ψ(3770)→γχc0ψ(3770)→γχc0 to be B(ψ(3770)→γχc0)=(6.88±0.28±0.67)×10−3B(ψ(3770)→γχc0)=(6.88±0.28±0.67)×10−3 and Γ[ψ(3770)→γχc0]=(187±8±19) keVΓ[ψ(3770)→γχc0]=(187±8±19) keV, respectively. These are the most precise measurements to date.

Created: 05-07-2017

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Радиофизический факультет Measurement of the branching fraction for ψ(3770) → γχc0