Takashi Tomura

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We have measured the branching fraction of the inclusive radiative B meson decay B→Xsγ to be Br(B→Xsγ) = (3.36 ± 0.53(stat) ± 0.42(sys) −0.54(th))× 10. The result is based on a sample of 6.07 × 106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric e+e− storage ring. PACS: 13.40.Hq, 14.40.Nd, 14.65.Fy
We report observations of the Cabibbo-suppressed decays B → D(∗)K− using a 10.4 fb−1 data sample accumulated at the Υ(4S) resonance with the Belle detector at the KEKB e+e− storage ring. The high-momentum particle identification system of Belle is used to isolate signals for B → D0K−, D+K−, D∗0K− and D∗+K− from the B → D(∗)π− decay processes which have much(More)
The branching fractions and the decay amplitudes of B → J/ψK∗ decays are measured in a 29.4 fb−1 data sample collected with the Belle detector at the KEKB electron-positron collider. The decay amplitudes of helicity states of the J/ψK∗ system are determined from the full angular distribution of the final state particles in the transversity basis. The(More)
We report measurements of the branching fractions for B0 → π+π−, K+π−, K+K− and K0π0, and B+ → π+π0, K+π0, K0π+ and K+K0. The results are based on 10.4 fb−1 of data collected on the Υ(4S) resonance at the KEKB e+e− storage ring with the Belle detector, equipped with a high momentum particle identification system for clear separation of charged π and K(More)
The Belle detector was designed and constructed to carry out quantitative studies of rare B-meson decay modes with very small branching fractions using an asymmetric eþe collider operating at the U(4S) resonance, the KEK-B-factory. Such studies require data samples containing B10 B-meson decays. The Belle detector is configured around a 1:5 T(More)
BACKGROUND Lenke 5C type adolescent idiopathic scoliosis (AIS) with a Cobb angle of over 30 degrees has high risk of progression. The need for corrective surgeries for degenerative lumbar scoliosis has been increasing these days and some of those cases are pre-existing type scoliosis. However, it is said to be difficult to differentiate pre-existing type(More)
K. Abe, 56 H. Aihara, 56 C. Andreopoulos, I. Anghel, A. Ariga, T. Ariga, R. Asfandiyarov, M. Askins, J.J. Back, P. Ballett, M. Barbi, G.J. Barker, G. Barr, F. Bay, P. Beltrame, V. Berardi, M. Bergevin, S. Berkman, T. Berry, S. Bhadra, F.d.M. Blaszczyk, A. Blondel, S. Bolognesi, S.B. Boyd, A. Bravar, C. Bronner, F.S. Cafagna, G. Carminati, S.L. Cartwright,(More)
We report a measurement of the D0-D0 mixing parameter yCP using 23.4 fb−1 of data collected near the Υ(4S) resonance with the Belle detector at KEKB. yCP is measured from the lifetime difference of D0 mesons decaying into the K−π+ state and the CP even eigenstate K−K+. We find yCP = ( −0.5± 1.0 −0.8 ) ×10−2, where the first error is statistical and the(More)
OVERVIEW: Along with advances in system component technologies, modern state-of-the-art power plant control systems are being developed by incorporating such advanced technologies as extensive digitization of high-speed control circuits, interconnection with other equipment over open interfaces, and a repertory of diverse multiplexed systems. Based on(More)
J. Gustafson, K. Abe, Y. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, T. Nakajima, Y. Nakano, S. Nakayama, A. Orii, H. Sekiya, M. Shiozawa, A. Takeda, H. Tanaka, T. Tomura, R. A. Wendell, T. Irvine, T. Kajita, I. Kametani, K. Kaneyuki, Y. Nishimura, E. Richard, K. Okumura, L. Labarga, P. Fernandez, S.(More)