K. Kojima

activity

20222026

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

24 citations · 115 across the 27 of their papers we have counts for

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hep-ex2022★ 22 cited

Search for Lepton-Flavor-Violating $τ$ Decays to a Lepton and an Invisible Boson at Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +398

We search for lepton-flavor-violating $τ^{-} \to e^{-} α$ and $τ^{-} \to μ^{-} α$ decays, where $α$ is an invisible spin-0 boson. The search uses electron-positron collisions at $10.58$ GeV cen…

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…

Search for Lepton-Flavor-Violating τ Decays to a Lepton and an Invisible Boson at Belle II

Measurement of the branching fractions and CP asymmetries of B+→π+π0 and B+→K+π0 decays in 2019-2021 Belle II data

Search for Lepton-Flavor-Violating $τ$ Decays to a Lepton and an Invisible Boson at Belle II

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