collaborators

5 papers

hep-ex2026

First evidence of and search for

Belle, Belle II Collaborations, : +412

We search for the pionic transitions and in decays using the Belle and Belle~II data samples c…

hep-ex2026

Study of at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +404

The bottomonium spectrum, consisting of bound states of a quark and an anti- quark, provides an excellent laboratory for probing quantum chromodynamics in the non-perturbati…

hep-ex2026

A search for feebly-interacting particles in decays with missing energy at Belle

Belle, Belle II Collaborations, : +406

We present a search for an invisible hidden-sector particle , produced in and decays, where , $…

hep-ex2025

Improved measurement of Born cross sections for and ( = 0, 1, 2) at Belle and Belle II

Belle, Belle II Collaborations, : +424

We study the processes and ( = 0, 1, 2) at center-of-mass energies from 10.73 to 11.02 GeV using a $142.5\,\mathrm{fb}^{…

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…