Journal Article First observation of the hadronic transition $ \Upsilon(4S) \to \eta h_{b}(1P)$ and new measurement of the $h_b(1P)$ and $\eta_b(1S)$ parameters

柴田, 利明  ,  SHIBATA, TOSHI-AKI

115 ( No. )  , p.142001 , 2015-09

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