Belle II has now accumulated the world's largest Υ(4S) dataset, surpassing Belle! Belle II's total integrated luminosity is 757 fb⁻¹ of Υ(4S) data and 864 fb⁻¹ of overall data. We hope to continue increasing the dataset for the rest of this data taking Run, which will continue until the summer.

As Belle II prepares for its future high-luminosity phases, experts from across the collaboration gathered at the Karlsruhe Institute of Technology, @kit.edu, for the 2025 Joint Computing, Data Production and Software Workshop for a week of in-depth discussions and collaborative planning.

We congratulate Belle II Member Laura Zani for being awarded the 2025 EPS HEP Young Experimental Physicist Prize for "...outstanding work on searches for physics beyond the standard model... and for remarkable contributions to... the Belle II experiment." www.infn.it/il-young-exp...

@physicstoday.bsky.social has a new article about #belle2 and #SuperKEKB and our quest to reach higher luminosities: pubs.aip.org/physicstoday...

Japan accelerator pursues nanobeams to boost luminosity

Squeezing beams of electrons and positrons for the Belle II experiment at the SuperKEKB facility proceeds with halting progress.

pubs.aip.org

Belle II has now published 45 physics papers, as of the end of last year. We look forward to publishing many more #belle2 papers in 2025! www.belle2.org/research/phy...

On our final day of data taking for 2024, the SuperKEKB accelerator broke the luminosity world record, and set a new record luminosity of 5.1 x 10³⁴ cm⁻²s⁻¹! Congratulations and Thank You #SuperKEKB! More information here: www2.kek.jp/ipns/en/news... (English) www2.kek.jp/ipns/ja/news... (Japanese)

SuperKEKB/Belle II Complete 2024 Operations｜News｜ Institute of Particle and Nuclear Studies

KEK素粒子原子核研究所の公式ページ

www2.kek.jp