collaborators

9 papers

hep-ex2025

Measurement of the branching fraction and search for and decays at Belle

Belle, Belle II Collaborations, : +481

We present a study of the rare charm meson decays , , and using a 942 fb data set c…

hep-ex2025

Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment

Belle II Collaboration, I. Adachi, L. Aggarwal +437

Inelastic dark matter models that have two dark matter particles and a massive dark photon can reproduce the observed relic dark matter density without violating cosmological limit…

hep-ex2025

Measurement of the Branching Fraction of at Belle

The Belle, Belle II Collaborations, : +426

We report a precise measurement of the ratio of branching fractions using 980 fb of data from th…

hep-ex2025

Search for Pcs(4459) and Pcs(4338) in Upsilon(1S,2S) inclusive decays at Belle

I. Adachi, L. Aggarwal, H. Ahmed +402

Using data samples of 102 million Upsilon(1S) events and 158 million Upsilon(2S) events collected by the Belle detector at the KEKB asymmetric-energy collider, we search f…

hep-ex2024

Search for lepton flavor-violating decay modes with hadronic -tagging at Belle and Belle II

Belle, Belle II Collaborations, : +425

We present the first search for the lepton flavor-violating decay modes using the 711 fb and 365 fb data samples re…

hep-ex2024

Measurement of the branching fraction and -violating asymmetry of the decay using million bottom-antibottom meson pairs in Belle II data

Belle II Collaboration, I. Adachi, L. Aggarwal +437

We measure the branching fraction and -violating flavor-dependent rate asymmetry of decays reconstructed using the Belle II detector in an electron-…