Belle II Document Server 5 records found  Search took 0.00 seconds. 
1. $R(D^{*})$ measurement using the hadronic tag algorithm at the Belle II experiment / Kazuki Kojima ; Toru Iijima ; Qi-Dong Zhou ; Kodai Matsuoka ; et al [BELLE2-NOTE-PH-2022-032] [BELLE2-TALK-DRAFT-2022-137] [BELLE2-TALK-CONF-2022-111] 20 minutes (15 minutes presentation + 5 minutes Q&A) ; ;
06 September 2022
/ The 2022 Autumn Meeting of the Physical Society of Japan
In the semileptonic decay of $B$ mesons, the global average of $R(D^{*})$ measurement deviates from the Standard Model by $3.3\sigma$. [...]
Belle II Note: Download fulltextPDF; Slide in Japanese: Download fulltextPDF;
2. Measurement of decay-time dependent CP violation in B0 → KS0KS0KS0 using 2019--2021 Belle II data / Hikaru Tanigawa ; Yutaka Ushiroda ; Kazutaka Sumisawa ; Koji Hara [BELLE2-CONF-PH-2022-007]
14 September 2022

We report a measurement of decay-time dependent CP-violating parameters in B0 → KS0KS0KS0 decays. [...]
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3. LFU measurements in semileptonic b->c,l,nu decays / Koji Hara [BELLE2-TALK-DRAFT-2022-135] [BELLE2-TALK-CONF-2022-107]
29 September 2022
/ 14th Conference on the Intersections of Particle and Nuclear Physics
The rate of semitauonic B decays has been consistently above theory expectations since these decays were first measured. [...]
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4. Status and outlook for RD(*) / Koji Hara [BELLE2-TALK-CONF-2020-056]
12 September 2020
/ Anomalies 2020
The ratios of branching fractions of the semitauonic B decays to the semileptonic B decays, RD(*) are sensitive to the new physics beyond the Standard Model (SM). [...]
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5. Status of Belle Ⅱ / Koji Hara [BELLE2-TALK-DRAFT-2019-012] [BELLE2-TALK-CONF-2019-016] 30 min
14 February 2019
/ KEK-FF 2019
We present status of Belle II Experiment with SuperKEKB accelerator at KEK, Tsukuba. [...]
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