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- W2020347715 abstract "Inclusive measurements of the spin‐singlet P‐wave state of charmonium hc(1P1) have been performed with a sample of approximately 106 million ψ(2S) decays collected with the BESIII detector at the BEPCII electron‐positron storage ring. We fitted distributions of the mass recoiling against the π0 in the decay ψ(2S)π0hc both inclusively and with a tag of the E1‐transition photon from hc→γηc to obtain the following preliminary results:M(hc) = 3525.16±0.16(stat.) MeV, Γ(hc) = 0.89±0.57(stat.) MeV, B(ψ(2S)→π0hc) = (8.42±1.29(stat.))×10−4, B(ψ(2S)→π0hc)×B(hc→γηc) = (4.69±0.48(stat.)×10−4, and B(hc→γηc) = (55.7±6.3(stat.))%." @default.
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- W2020347715 date "2010-01-01" @default.
- W2020347715 modified "2023-10-16" @default.
- W2020347715 title "Studyof h[sub c]([sup 1]P[sub 1]) at BESIII" @default.
- W2020347715 doi "https://doi.org/10.1063/1.3483345" @default.
- W2020347715 hasPublicationYear "2010" @default.
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