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Chilikin, K.*; 谷田 聖; Belle Collaboration*; 他173名*
Physical Review D, 100(1), p.012001_1 - 012001_16, 2019/07
被引用回数:5 パーセンタイル:31.16(Astronomy & Astrophysics)A search for the decays and is performed. Evidence for the decay is found; its significance is . No evidence is found for . The branching fraction for is measured to be ; the upper limit for the branching fraction is at C.L. In addition, a study of the invariant mass distribution in the channel results in the first observation of the decay with significance. The analysis is based on the 711 data sample collected by the Belle detector at the asymmetric-energy collider KEKB at the resonance.
Pal, B.*; 谷田 聖; Belle Collaboration*; 他173名*
Physical Review D, 99(9), p.091104_1 - 091104_8, 2019/05
被引用回数:6 パーセンタイル:36.14(Astronomy & Astrophysics)We report a search for the charmless baryonic decay with a data sample corresponding to an integrated luminosity of 711~ containing pairs. The data was collected by the Belle experiment running on the resonance at the KEKB collider. We measure a branching fraction , where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays and , and set an upper limit on the branching fraction: at 90% confidence level.