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Nisar, N. K.*; 谷田 聖; Belle Collaboration*; 他197名*
Physical Review D, 104(3), p.L031101_1 - L031101_8, 2021/08
被引用回数:1 パーセンタイル:9.61(Astronomy & Astrophysics)We report the results of the first search for the decay using of data collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. We observe no significant signal and set a 90% confidence-level upper limit of on the branching fraction of this decay.
Kaliyar, A. B.*; 谷田 聖; Belle Collaboration*; 他197名*
Physical Review D, 99(3), p.031102_1 - 031102_9, 2019/02
被引用回数:2 パーセンタイル:13.54(Astronomy & Astrophysics)We study charmless hadronic decays of charged mesons to the final states and using a data sample that contains pairs, and was collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. For , the measured branching fraction and direct asymmetry are and []%, respectively. In the absence of a statistically significant signal for , we obtain a 90% confidence-level upper limit on its branching fraction as .
Berger, M.*; 谷田 聖; Belle Collaboration*; 他197名*
Physical Review D, 98(11), p.112006_1 - 112006_10, 2018/12
被引用回数:5 パーセンタイル:27.79(Astronomy & Astrophysics)We report measurements of the branching fractions of the decays , and relative to the reference channel . The analysis is based on the full data sample collected at and close to resonance by the Belle detector at the KEKB asymmetric-energy collider corresponding to the integrated luminosity of 711 fb. We measure , and . The listed uncertainties are statistical and systematic, respectively.
Fulsom, B. G.*; 谷田 聖; Belle Collaboration*; 他197名*
Physical Review Letters, 121(23), p.232001_1 - 232001_8, 2018/12
被引用回数:5 パーセンタイル:41.01(Physics, Multidisciplinary)We report the observation of decay based on analysis of the inclusive photon spectrum of fb of collisions at the center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy collider. We measure a branching fraction of , and derive an mass of MeV/, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.
Babu, V.*; 谷田 聖; Belle Collaboration*; 他197名*
Physical Review D, 97(1), p.011101_1 - 011101_8, 2018/01
被引用回数:11 パーセンタイル:50.62(Astronomy & Astrophysics)We search for violation in the charged charm meson decay , based on a data sample corresponding to an integrated luminosity of collected by the Belle experiment at the KEKB asymmetric-energy collider. The measured violating asymmetry is , which is consistent with the standard model prediction and has a significantly improved precision compared to previous results.
Bhardwaj, V.*; 谷田 聖; Belle Collaboration*; 他197名*
Physical Review D, 93(5), p.052016_1 - 052016_13, 2016/03
被引用回数:20 パーセンタイル:66.26(Astronomy & Astrophysics)We report inclusive and exclusive measurements for and production in decays. We measure and . For the first time, production in exclusive decays in the modes and has been observed, along with first evidence for the decay mode. For production, we report the first observation in the , and decay modes. Using these decay modes, we observe a difference in the production mechanism of in comparison to in decays. In addition, we report searches for and in the decay mode. The reported results use events collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider.