Belle II Document Server 198 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
1. Recent results from Belle II / Valerio Bertacchi [BELLE2-CONF-PROC-2023-008] Proceedings of QCD22 conference
02 September 2022

The Belle II experiment at the SuperKEKB energy-asymmetric e+e− collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. [...]
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2. Time-dependent, hadronic B decays and electroweak penguins at Belle II / Valerio Bertacchi [BELLE2-CONF-PROC-2023-007] Proceedings of "Rencontres de Moriond QCD 2023" conference
25 April 2023

We report the recent measurements performed using the data sample collected from 2019 to 2022 by the Belle II experiment 1 at Υ(4S) resonance, corresponding to an integrated luminosity of 362 fb−1 . [...]
3. Study of B+ → J/ψ K*+ (→KS pi+) decays / Natsuki Kuroda ; Kenkichi Miyabayashi [BELLE2-NOTE-PL-2023-002]
18 March 2023

We report a study for reconstruction of the decay chain of B0 → J/ψK∗+ followed by J/ψ → μ+μ−, K∗+ → KS0π+ and KS0 → π+π−. [...]
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4. BSM Discovery Potential of Belle II in b->c and b-->s / Tom Browder [BELLE2-TALK-CONF-2023-021] 35 minutes. Workshop format with multiple interruptions.
09 March 2023
/ Anomalies at the Simons Center
We describe the BSM discovery potential of Belle II@SuperKEKB in b->c and b->s processes. [...]
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5. 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. [...]
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6. 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. [...]
7. 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. [...]
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8. 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) [...]
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9. 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$^{-1}$ [...]
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10. 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..
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