Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
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:14 パーセンタイル:58.08(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.
Choi, S.-K.*; 谷田 聖; Belle Collaboration*; 他174名*
Physical Review D, 91(9), p.092011_1 - 092011_12, 2015/05
被引用回数:15 パーセンタイル:53.87(Astronomy & Astrophysics)We report improved measurements of the product branching fractions and , where the first errors are statistical, the second are systematic and the third are from and branching fractions. In addition, we report negative results from a search for hypothesized neutral () and doubly charged () isospin partners of the and provide upper limits on the product branching fractions and that are more than an order of magnitude smaller than theoretical expectations for the hypotheses that the is a member of an isospin triplet. The analysis uses a 711 data sample containing 772 million -meson pairs collected at the resonance in the Belle detector at the KEKB collider.
Bala, A.*; 谷田 聖; Belle Collaboration*; 他174名*
Physical Review D, 91(5), p.051101_1 - 051101_7, 2015/03
被引用回数:21 パーセンタイル:65.00(Astronomy & Astrophysics)We report the first observation of and evidence for . We measure the product of branching fractions for the former to be and find that does not dominate the decay mode. We also measure . This study is based on the full data sample of 711 ( pairs) collected at the resonance with the Belle detector at the KEKB collider.