Using a sample of 106 million ψ(3686) decays, the branching fractions of ψ(3686) → γχc0, ψ(3686) → γχc1, and ψ(3686) → γχc2 are measured with improved precision to be (9.389 pm 0.014 pm 0.332)%, (9.905 pm 0.011 pm 0.353)%, and (9.621 pm 0.013 pm 0.272)%, respectively, where the first uncertainties are statistical and the second ones are systematic. The product branching fractions of ψ(3686) → γχc1; χc1 → γJ/ψ and ψ(3686) → γχc2; χc2 → γJ/ψ and the branching fractions of χc1 → γJ/ψ and χc2 → γJ/ψ are also presented

Branching fraction measurements of ψ(3686)→γχcJ

FARINELLI, Riccardo;GARZIA, Isabella;MEZZADRI, Giulio;
2017

Abstract

Using a sample of 106 million ψ(3686) decays, the branching fractions of ψ(3686) → γχc0, ψ(3686) → γχc1, and ψ(3686) → γχc2 are measured with improved precision to be (9.389 pm 0.014 pm 0.332)%, (9.905 pm 0.011 pm 0.353)%, and (9.621 pm 0.013 pm 0.272)%, respectively, where the first uncertainties are statistical and the second ones are systematic. The product branching fractions of ψ(3686) → γχc1; χc1 → γJ/ψ and ψ(3686) → γχc2; χc2 → γJ/ψ and the branching fractions of χc1 → γJ/ψ and χc2 → γJ/ψ are also presented
2017
Ablikim, M.; Achasov, M.  . n.; Ahmed, S.; Albrecht, M.; Amoroso, A.; An, F.  . f.; An, Q.; Bai, J.  . z.; Bakina, O.; Baldini Ferroli, R.; Ban, Y.; B...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2375652
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