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41.
| The TOP counter and determination of bunch-crossing time at Belle II
/ M. Staric
[BELLE2-CONF-PROC-2022-022]
20 December 2022
At the Belle II experiment a Time-of-Propagation (TOP) counter is used for particle identification in the barrel region. [...]
Fulltext:  PDF; |
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42.
| Measurement of instrumental asymmetries of kaons and pions
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2022-004]
23 November 2022
We measure instrumental asymmetries of kaons and pions using $D^0 \to K^-\pi^+$ and $D^- \to K^0_S\pi^-$ decays. [...]
Fulltext: PDF; |
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43.
| Branching fractions and CP asymmetries in B decays through b -> c processes at Belle
/ Kim Smith
[BELLE2-CONF-PROC-2022-021]
15 November 2022
We report results of the branching fractions for a number of charm B decays including $\APBzero \to \PD^{*+}\Ppiminus$, $\APBzero \to \PD^{*+}\PKminus$, $\APBzero \to \PDplus\Ppiminus$ and $\APBzero \to \PDplus\PKminus$ all measured using $772\times 10^6$ B-meson pairs recorded by the Belle experiment at the KEKB asymmetric-energy $e^+e^-$ collider. [...]
Fulltext: PDF; |
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44.
| Status and prospects for light DM and mediator searches at Belle II
/ Christopher Hearty
[BELLE2-TALK-DRAFT-2022-160]
[BELLE2-TALK-CONF-2022-126]
20 minutes https://indico.cern.ch/event/1119695/page/24895-overview Workshop on feebly-interacting particles, CERN, Oct 17 - 21, 2022
19 October 2022
/ FIPs 2022
I will review the status and prospects for Belle II dark sector searches
Fulltext: PDF (additional files); |
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45.
| Machine learning-based lepton identification with the Belle II electromagnetic calorimeter
/ M. Milesi ; M. Hohmann ; P. Urquijo ; A. Narimani Charan ; et al
[BELLE2-PUB-TE-2022-001]
20 October 2022
We present a new model for lepton identification with the Belle II electromagnetic calorimeter (ECL) [...]
Fulltext: PDF; |
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46.
| Study of Exclusive $B \to \pi e^+ \nu_e$ Decays with Hadronic Full-event-interpretation Tagging in 189.3 fb$^{-1}$ of Belle II Data
/ Nadia Toutounji ; Moritz Bauer ; Pablo Goldenzweig ; Kevin Varvell
[BELLE2-CONF-PH-2022-008]
16 June 2022
We present a reconstruction of the semileptonic decays $B^0 \to \pi^- e^+ \nu_e$ and $B^+ \to \pi^0 e^+ \nu_e$ in a sample corresponding to 189.3 fb$^{-1}$ of Belle II data, using events where the partner $B$-meson is reconstructed from a large variety of hadronic channels via a tagging algorithm known as the full-event-interpretation. [...]
Fulltext: PDF; |
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47.
| Measurement of the branching fraction for the decay $B \to K^{\ast}(892)\ell^+\ell^-$ at Belle II
/ Seema Choudhury
[BELLE2-CONF-PH-2022-009]
20 September 2022
We report a measurement of the branching fraction of $B \to K^{\ast}(892)\ell^+\ell^-$ decays, where $\ell^+\ell^- = \mu^+\mu^-$ or $e^+e^-$, using electron-positron collisions recorded at an energy at or near the $\Upsilon(4S)$ mass and corresponding to an integrated luminosity of $189$ fb$^{-1}$ [...]
Fulltext: PDF; |
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48.
| $R(D^{*})$ 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) ; https://www.jps.or.jp/english/meetings-and-awards/autumn/autumn-meeting-index.html ; https://kds.kek.jp/event/43097/
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: PDF; Slide in Japanese: PDF; |
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49.
| Charm lifetimes at Belle II
/ Angelo Di Canto
[BELLE2-TALK-CONF-2022-101]
19 August 2022
/ PhiPsi 2022
Outstanding vertexing performance and low-background environment are key enablers of a systematic Belle II program targeted at measurements of charm hadron lifetimes Recent results from measurements of the D0, D+, Lambda_c and Omega_c lifetimes are presented..
Fulltext: PDF; |
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50.
| New Results on Beauty, Charm, and Tau from Belle II
/ Soeren Prell
[BELLE2-TALK-CONF-2022-099]
25'+3'
30 August 2022
/ CIPANP 2022
The Belle II experiment has collected e+e- collision data near the Upsilon(4S) resonance since 2019 at the SuperKEKB accelerator. [...]
Fulltext: PDF; |
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