Yoshihara Group, University of Hawaii at Manoa

Research

Current Research

Our work connects accelerator diagnostics, electronics R&D, Belle II detector operation, and physics analysis. We develop technologies that can move from today's Belle II systems toward future experiments.

XRM upgrade readout concept Multi-BOR timing and readout architecture
2021-Present

Beam Diagnosis & Accelerator Instrumentation

Fast beam diagnostic systems at SuperKEKB for understanding sudden beam loss events, including BOR and XRM.

The XRM upgrade concept uses multi-channel X-ray sensor readout and RFSoC-based waveform digitization to measure fast beam-size changes.

RFSoC 4x2 board for fast waveform digitization and FPGA development 2024-Present

Electronics R&D

Foundational R&D for future experiments, including open-source ASIC studies, FPGA/RFSoC-based readout, fast-timing digitizers, and hardware-aware AI/ML for low-latency applications.

KLM readout motherboard 2025-Present

Belle II KLM and TOP Operation

Detector operation and hardware support for Belle II KLM and TOP systems, including readout robustness, firmware, high-background operation, and KLM TRG upgrades.

Belle II detector Belle II

Physics Analysis: Semileptonic BSM Searches

We are pursuing a direct search for right-handed heavy neutrinos in B->D* ℓ N decays, using semileptonic channels related to the R(D) and R(D*) anomalies. We also plan broader dark-sector searches at Belle II.

▶ Past Research

▶ Events & Presentations

▶ Selected Publications