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21.
| Measurement of the photon-energy spectrum in inclusive B-> X_s gamma decays identified using hadronic decays of the recoil B meson in 2019–2021 Belle II data
/ Henrikas Svidras ; Arthur Bolz ; Lu Cao ; Markus Röhrken ; et al
[BELLE2-CONF-DRAFT-2022-018]
[BELLE2-CONF-PH-2022-018]
20 October 2022
We measure the photon-energy spectrum in radiative bottom-meson ($B$) decays into inclusive final states involving a strange hadron and a photon. [...]
Fulltext:  PDF (additional files); |
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22.
| The Silicon Vertex Detector of the Belle II Experiment
/ Kookhyun Kang ; on behalf of the Belle-II SVD Collaboration
[BELLE2-CONF-PROC-2023-003]
Proceedings of the 31st International Workshop on Vertex Detectors
13 January 2023
Belle II is an experiment taking data at an asymmetric energy e+e- collider, SuperKEKB, which is operated at the Υ(4S) resonance energy. [...]
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23.
| 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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24.
| 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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25.
| 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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26.
| 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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27.
| 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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28.
| Recent Belle II results on decay-time-dependent CP violation
/ Ming-Chuan Chang
[BELLE2-TALK-CONF-2022-087]
15 minutes, on-line conference
25 August 2022
/ APPC15
Measurements of decay-time dependent CP violation are chief goals of the Belle II physics program. [...]
Fulltext: PPTX; |
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29.
| Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in {\boldmath $B \to J/\psi K$} decays at Belle II
/ S. Halder ; R. Tiwary ; S. Sandilya ; G. B. Mohanty
[BELLE2-CONF-PH-2022-006]
21 July 2022
We report a study of $B \to J/\psi(\ell^{+}\ell^{-}) K$ decays, where $\ell$ represents an electron or a muon, using $e^{+}e^{-}$ collisions at the $\Upsilon(4S)$ resonance [...]
Fulltext: PDF; |
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30.
| Angular analysis of $B^+ \to \rho^+\rho^0$ decays reconstructed in 2019, 2020, and 2021 Belle~II data
/ M.~Dorigo ; E.~Ganiev ; R.~Manfredi ; S.~Raiz ; et al
[BELLE2-CONF-PH-2022-005]
23 June 2022
We report on a Belle II measurement of the branching fraction~($\mathcal{B}$), longitudinal polarization fraction ~($f_L$), and \CP~asymmetry~$\mathcal{A}_{\CP}$ of $B^+\to \rho^+\rho^0$ decays. [...]
Fulltext: PDF; |
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