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Tamponi, U.*; 谷田 聖; Belle Collaboration*; 他174名*
European Physical Journal C, 78(8), p.633_1 - 633_10, 2018/08
被引用回数:12 パーセンタイル:59.45(Physics, Particles & Fields)We study bottomonium production in association with an meson in annihilations near the , at a center of mass energy of GeV. The results are based on the fb data sample collected by the Belle experiment at the asymmetric energy KEKB collider. Only the meson is reconstructed and the missing-mass spectrum of candidates is investigated. We observe the process and find evidence for the process, while no significant signals of , , nor are found. Cross sections for the studied processes are reported.
Tamponi, U.*; 谷田 聖; Belle Collaboration*; 他156名*
Physical Review Letters, 115(14), p.142001_1 - 142001_7, 2015/09
被引用回数:30 パーセンタイル:83.23(Physics, Multidisciplinary)Using a sample of decays collected by the Belle experiment at the KEKB collider, we observe, for the first time, the transition with the branching fraction and we measure the mass MeV/, corresponding to the hyperfine (HF) splitting MeV/.Using the transition , we measure the mass MeV/, corresponding to MeV/, the width MeV/ and the branching fraction .