H. Shibuya

activity

20012022

most citedObservation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays

550 citations · 6.4k across the 94 of their papers we have counts for

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93 papers · 1 filter

hep-ex2022

Measurement of the branching fractions and $C P$ asymmetries of $B^{+} \to π^{+} π^{0}$ and $B^{+} \to K^{+} π^{0}$ decays in 2019-2021 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +582

We determine the branching fractions $B$ and $C P$ asymmetries $A_{CP}$ of the decays $B^{+} \to π^{+} π^{0}$ and $B^{+} \to K^{+} π^{0}$ . The result…

hep-ex2021★ 1 cited

Study of $χ_{b J} (n P) \to ω Υ (1 S)$ at Belle

Belle Collaboration, A. Abdesselam, I. Adachi +470

We report results from a study of hadronic transitions of the $χ_{b J} (n P)$ states of bottomonium at Belle. The $P$ -wave states are reconstructed in transitions to the $Υ (1 S)$ with…

hep-ex2015★ 9 cited

Measurement of Azimuthal Modulations in the Cross-Section of Di-Pion Pairs in Di-Jet Production from Electron-Positron Annihilation

A. Abdesselam, I. Adachi, K. Adamczyk +418

We present an extraction of azimuthal correlations between two pairs of charged pions detected in opposite jets from electron-positron annihilation. These correlations may arise fr…

hep-ex2014★ 427 cited

The Physics of the B Factories

A. J. Bevan, B. Golob, Th. Mannel +2003

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and da…

hep-ex2008★ 12 cited

Study of the suppressed B meson decay B^- -> D K^-, D -> K^+ π^-

Belle Collaboration, Y. Horii, K. Trabelsi +1

We report a study of the suppressed B meson decay B^- -> D K^- followed by D -> K^+ π^-, where D indicates a D^0 or \bar{D}^0 state. The two decay paths interfere and provide infor…

hep-ex2008★ 27 cited

Measurement of the Moments of the Photon Energy Spectrum in B -> X_s gamma Decays and Determination of |V_cb| and m_b at Belle

Belle Collaboration, C. Schwanda, P. Urquijo +2

Using the previous Belle measurement of the inclusive photon energy in $B \to X_{s} γ$ decays, we determine the first and second moments of this spectrum for minimum photon energies in…

hep-ex2008★ 11 cited

Measurement of the branching fraction and charge asymmetry of the decay B+ -> D+ D0bar and search for B0 -> D0 D0bar

Belle Collaboration

We report an improved measurement of the B+ -> D+ D0bar and B0 -> D0 D0bar decays based on 657 10^6 BBar events collected with the Belle detector at KEKB. We measure the branching…

hep-ex2008★ 32 cited

Improved search for D^0 mixing using semileptonic decays at Belle

BELLE Collaboration, U. Bitenc

A search for mixing in the neutral D meson system has been performed using semileptonic D0 -> K(*)- e+ νand D0 -> K(*)- μ+ νdecays. Neutral D mesons from D*+ -> D0 π_s^+ decays are…

hep-ex2007★ 54 cited

Study of B -> D** l nu with full reconstruction tagging

Dmitri Liventsev

We report a study of semileptonic B decays to P-wave D** mesons. Semileptonic decay to D*_2 meson is observed for the first time and its product branching ratio is measured to be B…

hep-ex2007★ 29 cited

Measurement of CP Asymmetries and Branching Fractions in a Time-Dependent Dalitz Analysis of B^0-->(rho pi)^0 and a Constraint on the Quark Mixing Angle phi_2

The Belle Collaboration, A. Kusaka, C. C. Wang

We present the results of a time-dependent Dalitz plot analysis of B0 --> pi+ pi- pi0 decays based on a 414/fb data sample that contains 449 x 10^6 BB pairs. The data was collected…

hep-ex2007★ 34 cited

Observation of Ds1(2536)+ -> D+pi-K+ and angular decomposition of Ds1(2536)+ -> D*+K0S

Belle Collaboration

Using 462/fb of e+e- annihilation data recorded by the Belle detector, we report the first observation of the decay Ds1(2536)+ -> D+pi-K+. The ratio of branching fractions B(Ds1+ -…

hep-ex2007★ 13 cited

Time-Dependent {\boldmath $C P$ }-Violating Asymmetry in $B^{0} \to ρ^{0} γ$ Decays

Y. Ushiroda

We report the first measurement of CP-violation parameters in $B^{0} \to ρ^{0} γ$ decays based on a data sample of $657 \times 1 0^{6} B B ˉ$ pairs collected with the Belle detector at the…

hep-ex2007★ 36 cited

Observation of e+e- to K+K-J/psi via Initial State Radiation at Belle

C. Z. Yuan, Belle Collaboration

The process e+e- to K+K-J/psi is observed for the first time via initial state radiation. The cross section of e+e- to K+K-J/psi for center-of-mass energies between threshold and 6…

hep-ex2007★ 56 cited

Measurement of B(Ds -> munu)

Belle Collaboration, L. Widhalm

We present a measurement of the branching fraction $B (D_{s}^{+} \to μ^{+} ν_{μ})$ using a 548 fb $^{- 1}$ data sample collected by the Belle experiment at the KEKB $e^{+} e^{-}$ collider. The $D_{s}$ …

hep-ex2007★ 183 cited

Search for new charmonium states in the processes e+ e- --> J/psi D() D() at sqrt{s} ~ 10.6 GeV

Belle Collaboration, K. Abe

We present a study of the X(3940) state in the process e+e- -> J/psi D* Dbar. The X(3940) mass and width are measured to be (3942 +7 -6 +- 6)MeV/c^2 and Gamma=(37 + 26 - 15 +- 8 Me…

hep-ex2007★ 83 cited

Observation of $ψ (4415) \to D D ˉ_{2}^{*} (2460)$ decay using initial-state radiation

Belle Collaboration, G. Pakhlova

We report the first observation of the $ψ (4415)$ resonance in the reaction $\e^+e^-\to D^0 D^-π^+$ and a measurement of its cross section in the center-of-mass energy range $4.0\ma…

hep-ex2007★ 550 cited

Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays

Belle Collaboration, S. -K. Choi, S. L. Olsen

A distinct peak is observed in the pi^+/- psi' invariant mass distribution near 4.43 GeV in B->K pi^+/- psi' decays. A fit using a Breit Wigner resonance shape yields a peak mass a…

hep-ex2007★ 9 cited

Search for \bar{B}^0\toΛ_c^+\barΛ_c^- decay at Belle

The Belle Collaboration, K. Abe

We search for the doubly charmed baryonic decay $B ˉ^{0} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ , in a data sample of $520 \times 1 0^{6}$ $B B ˉ$ events accumulated at the $Υ (4 S)$ resonance with the B…

hep-ex2007★ 136 cited

Measurement of the near-threshold $e^{+} e^{-} \to D D ˉ$ cross section using initial-state radiation

Belle Collaboration, G. Pakhlova

We report measurements of the exclusive cross section for $e^{+} e^{-} \to D D ˉ$ , where $D = D^{0}$ or $D^{+}$ , in the center-of-mass energy range from the $D D ˉ$ threshold to $5\ma…

hep-ex2007

Search for the CP-violating decays $Υ (4 S) B 0 B ˉ 0 J / K 0_{S} + J / ψ (η_{c}) K 0_{S}$

O. Tajima, M Hazumi

We report the first search for CP violating decays of the $Υ (4 S)$ using a data sample that contains 535 million $Υ (4 S)$ mesons with the Belle detector at the KEKB asymmetric-energy…

hep-ex2007★ 154 cited

Observation of a new D_sJ meson in B+->D0BD0K+ decays

J. Brodzicka, H. Palka

We report the observation of a new $D_{s J}$ meson produced in $B^{+} \to D ˉ^{0} D_{s J} \to D ˉ^{0} D^{0} K^{+}$ . This state has a mass of $M=2708 \pm 9 ^{+11}_{-10} \rm{Me…

hep-ex2007★ 390 cited

Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle

Belle Collaboration, C. Z. Yuan

The cross section for e^+e^- to pi^+pi^-J/psi between 3.8 and 5.5 GeV/c^2 is measured using a 548 fb^{-1} data sample collected on or near the Upsilon(4S) resonance with the Belle…

hep-ex2007★ 60 cited

Search for B -> h(*) nu nubar Decays at Belle

K. -F. Chen

We present a search for the rare decays B -> h(*) nu nubar, where h(*) stands for a light meson. A data sample of 535 million BBbar pairs collected with the Belle detector at the K…

hep-ex2007★ 127 cited

Observation of B^0 \to D^{*-} τ^+ ν_τ decay at Belle

A. Matyja, M. Rozanska

We report an observation of the decay $B^{0} \to D^{*-} τ^{+} ν_{τ}$ in a data sample containing $535 \times 1 0^{6}$ $B B ˉ$ pairs collected with the Belle detector at the KEKB asymmetric-…