| Title▼ | Belle II Number▼ | Tags | Submit date▼ | Downloads |
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Recent results from Belle IIPublic
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. The design luminosity of the machine is 6 · 1035 cm−2s−1 and the Belle II experiment aims to ultimately record 50 ab−1 of data, a factor of 50 more than its predecessor. With this data set, Bel… |
BELLE2-CONF-PROC-2023-008 | - | 2022-09-02 |
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Recent results from Belle IIPublic
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. The design luminosity of the machine is 6×1035 cm−2s−1 and the Belle II experiment aims to ultimately record 50 ab−1 of data, a factor of 50 more than its predecessor. With this data set, Belle… |
BELLE2-TALK-CONF-2022-098 | - | 2022-08-31 |
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Recent results from Belle IIPublic
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. The design luminosity of the machine is 6×1035 cm−2s−1 and the Belle II experiment aims to ultimately record 50 ab−1 of data, a factor of 50 more than its predecessor. With this data set, Belle… |
BELLE2-TALK-CONF-2022-097 | - | 2022-08-31 |
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New Results on Beauty, Charm, and Tau from Belle IIPublic
The Belle II experiment has collected e+e- collision data near the Upsilon(4S) resonance since 2019 at the SuperKEKB accelerator. Recent results from those data in beauty, charm and tau decays will be presented. |
BELLE2-TALK-CONF-2022-099 | - | 2022-08-30 |
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Overview of R(D) and R(D*) at FPCPPublic
In this talk, an overview of the latest $R(D^{(*)}$ measurements performed at the Belle and LHCb experiments is presented. The main approach and methodology of each measurement is discussed, along with the current limitations and potential improvements. Furthermore, the prospects for $R(D^{(*))}$ measurements at Belle II and the tools developed t… |
BELLE2-CONF-PROC-2022-014 | - | 2022-08-26 |
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Efficiency study on the cross-section measurement of ee -> 3pi through the radiative return method at Belle IIPublic
This note presents plots of efficiency study for the cross section measurement of ee -> 3pi. This study is preformed with Phase III Monte Carlo samples of ee -> 3 pi gamma process. |
BELLE2-NOTE-PL-2022-003 | - | 2022-08-25 |
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Status and prospects for SuperKEKB/Belle II experimentPublic
SuperKEKB/Belle II experiment is a successor of the KEKB/Belle experiment. Electron-position collisions at the energy of Y(4S) resonance are provided by the SuperKEKB accelerator and the collision data is collected with the Belle II detector. The goal of the experiment is to exceed the integrated luminosity of 50 ab-1, which is roughly 50 times la… |
BELLE2-TALK-CONF-2022-100 | - | 2022-08-25 |
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Recent Belle II results on decay-time-dependent CP violationPublic
Measurements of decay-time dependent CP violation are chief goals of the Belle II physics program. Comparison between penguin-dominated b→qq ̅s and tree-dominated b→cc ̅s results allows for stringent tests of CKM unitarity that are sensitive to non-SM physics. This talk present first Belle II results on the mixing rate and lifetime of B^0 mesons, a… |
BELLE2-TALK-CONF-2022-087 | - | 2022-08-25 |
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Charm lifetime measurements at Belle IIPublic
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 D0 meson, D+ meson, and Λc baryon lifetimes from the Belle II data samples will be presented. These results are the most precise measurements to d… |
BELLE2-TALK-CONF-2022-090 | - | 2022-08-21 |
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Charm lifetimes at Belle IIPublic
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. |
BELLE2-TALK-CONF-2022-101 | - | 2022-08-19 |
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Hadronic B decays at Belle and Belle IIPublic
The investigation of 𝐵-meson decays to charmed and charmless hadronic final states is a keystone of the Belle II physics program. It allows for theoretically reliable and experimentally precise constraints on the CKM Unitarity Triangle fit, and is sensitive to effects from non-SM physics. Results on branching ratios, direct CP-violating asymmetrie… |
BELLE2-TALK-CONF-2022-091 | - | 2022-08-14 |
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Dark sector and tau physics at Belle and Belle IIPublic
"Dark sector and tau physics at Belle and Belle II" talk at Vietnam Flavour Physics Conference 2022. |
BELLE2-TALK-CONF-2022-094 | - | 2022-08-14 |
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Semileptonic decay at Belle and Belle IIPublic
An overview of recent results in semileptonic B decays at Belle and Belle II. |
BELLE2-TALK-CONF-2022-093 | - | 2022-08-14 |
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Electroweak and radiative penquin decays at Belle IIPublic
The overview of recent results in electroweak penguin and radiative results at Belle and Belle II for the Vietnam Flavour Physics conference. |
BELLE2-TALK-CONF-2022-092 | - | 2022-08-14 |
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Overview of Belle IIPublic
An overview of the Belle II experiment, followed by presentations of recent Belle II physics results. |
BELLE2-TALK-CONF-2022-095 | - | 2022-08-14 |
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Recent spectroscopy results from Belle and Belle IIPublic
The Belle experiment at the KEKB energy-asymmetric 𝑒+𝑒− collider accumulated dataset with integrated luminosity of 1/ab, including Upsilon(nS) on resonances, off-resonances, and Upsilon(5S) scan data. And the Belle II experiment is a substantial upgrade of the B factory facility, with much higher instantaneous luminosity and will accumulate 50/ab … |
BELLE2-TALK-CONF-2022-096 | - | 2022-08-01 |
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Recent results on B and D decay from Belle IIPublic
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. The design luminosity of the machine is 6×1035 cm−2s−1 and the Belle II experiment aims to ultimately record 50 ab−1 of data, a factor of 50 more than its predecessor. With this data set, Belle… |
BELLE2-TALK-CONF-2022-085 | - | 2022-07-27 |
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Recent results on the dark sector from Belle IIPublic
Belle has unique reach for a broad class of models that postulate the existence of dark matter particles with MeV—GeV masses. This talk presents recent world-leading physics results from Belle II searches for dark Higgstrahlung and invisible Z′ decays; as well as the near-term prospects for other dark-sector searches. |
BELLE2-TALK-CONF-2022-086 | - | 2022-07-25 |
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Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in {\boldmath $B \to J/\psi K$} decays at Belle IIPublic
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. The data were collected by the Belle~II experiment at the SuperKEKB asymmetric-energy collider during 2019--2021, corresponding to an integrated luminosity of $189$\,fb$^{-1}$… |
BELLE2-CONF-PH-2022-006 | - | 2022-07-21 |
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Recent dark sector results at Belle IIPublic
Belle has unique reach for a broad class of models that postulate the existence of dark matter particles with MeV—GeV masses. This talk presents recent world-leading physics results from Belle II searches for dark Higgstrahlung and invisible Z′ decays; as well as the near-term prospects for other dark-sector searches. |
BELLE2-TALK-CONF-2022-071 | - | 2022-07-18 |
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