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Ku, Y.*; 谷田 聖; Belle Collaboration*; 他153名*
Physical Review D, 102(1), p.012003_1 - 012003_9, 2020/07
被引用回数:2 パーセンタイル:15.55(Astronomy & Astrophysics)We report searches for and decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a data sample that contains pairs and was collected near the resonance with the Belle detector at the KEKB collider. We observe no significant signal for either decay and set upper limits on their branching fractions at confidence level of and .
Shen, C. P.*; 谷田 聖; Belle Collaboration*; 他153名*
Physical Review D, 93(11), p.112013_1 - 112013_11, 2016/06
被引用回数:6 パーセンタイル:31.69(Astronomy & Astrophysics)The branching fractions of the inclusive decays into final states with a or a are measured with improved precision to be and . The first search for into states that decay into a or a plus one or two charged tracks yields no significant signals for states in any of the examined decay modes, and upper limits on their production rates in inclusive decays are determined.