K. Sumisawa

activity

20012025

most citedObservation of Double cc bar Production in e+ e- Annihilation at sqrt{s} ~ 10.6 GeV

279 citations · 4.4k across the 104 of their papers we have counts for

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hep-ex2025

Measurement of the $C P$ asymmetry in $D^{0} \to π^{+} π^{-} π^{0}$ decays at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +400

We measure the time- and phase-space-integrated $C P$ asymmetry $A_{C P}$ in $D^{0} \to π^{+} π^{-} π^{0}$ decays reconstructed in $e^{+} e^{-} \to c c ˉ$ events collected by the Belle II experiment…

hep-ex2025

Measurement of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays at Belle and Belle II

Belle, Belle II Collaborations, : +350

We present a measurement of the time-dependent $C P$ asymmetry in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays using a data set of 365 fb $^{- 1}$ recorded by the Belle II experiment…

hep-ex2024★ 2 cited

Observation of the decay $B^{0} \to J / ψ ω$ at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +383

We measure the branching fraction of the decay $B^{0} \to J / ψ ω$ using data collected with the Belle II detector at the SuperKEKB collider. The data contain $(387 \pm 6) \times 1 0^{6}$ …

hep-ex2024★ 2 cited

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +436

We report measurements of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays based on a data sample of $(388 \pm 6) \times 1 0^{6}$ $B B ˉ$ events collected at the $Υ (4 S)$ …

hep-ex2024★ 24 cited

Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle II experiment

The Belle II Collaboration, I. Adachi, L. Aggarwal +404

A series of data samples was collected with the Belle~II detector at the SuperKEKB collider from March 2019 to June 2022. We determine the integrated luminosities of these data sam…

hep-ex2024★ 6 cited

Measurements of the branching fractions of $Ξ_{c}^{0} \to Ξ^{0} π^{0}$ , $Ξ_{c}^{0} \to Ξ^{0} η$ , and $Ξ_{c}^{0} \to Ξ^{0} η^{'}$ and asymmetry parameter of $Ξ_{c}^{0} \to Ξ^{0} π^{0}$

Belle, Belle II Collaborations, : +382

We present a study of $Ξ_{c}^{0} \to Ξ^{0} π^{0}$ , $Ξ_{c}^{0} \to Ξ^{0} η$ , and $Ξ_{c}^{0} \to Ξ^{0} η^{'}$ decays using the Belle and Belle~II data samples, which have integrated lumi…

Measurement of the CP asymmetry in D0→π+π−π0 decays at Belle II

Measurement of time-dependent CP asymmetries in B0→KS0​π+π−γ decays at Belle and Belle II

Observation of the decay B0→J/ψω at Belle II

Measurement of CP asymmetries in B0→KS0​π0γ decays at Belle II