Yuuhei Teramoto

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We report the first observation of the decay B + → χ c0 K + using 21.3 fb −1 of data collected by the Belle detector at the Υ(4S) resonance. The preliminary result for the branching fraction is B(B + → χ c0 K +) = (8.0 +2.7 −2.4 ± 1.0 ± 1.1) × 10 −4 where the first error is statistical, the second is systematic, and the third comes from the uncertainty in(More)
We perform a full amplitude analysis of B 0 ! c 0 K þ À decays, with c 0 ! þ À or e þ e À , to constrain the spin and parity of the Zð4430Þ À. The J P ¼ 1 þ hypothesis is favored over the 0 À , 1 À , 2 À and 2 þ hypotheses at the levels of 3:4, 3:7, 4:7 and 5:1, respectively. The analysis is based on a 711 fb À1 data sample that contains 772 Â 10 6 B " B(More)
With a view to classifying foods on the basis of the amount of masticatory action required, an attempt was made to correlate the properties of different foods as shown by mechanical measurements with the amount of masticatory action involved as determined by means of an electromyogram. We obtained the following results: 1) We found an extremely high(More)