| Title▼ | Belle II Number▼ | Tags | Submit date▼ | Downloads |
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Machine Learning for New Physics in B → K ∗µ+µ− DecaysPublic
We report the status of a neural network regression model trained to extract new physics (NP) parame- ters in Monte Carlo (MC) data. We utilize a new EvtGen NP MC generator to generate B → K ∗ µ+ µ− events according to the deviation of the Wilson Coef- ficient C9 from its SM value, δC9 . We train a three- dimensional ResNet regression model, using… |
BELLE2-POSTER-CONF-2023-002 | - | 2023-05-01 |
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| Searches for light dark sectors at Belle II, Belle, and BaBarPublic | BELLE2-CONF-PROC-2023-009 | - | 2023-04-29 | |
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Time-dependent, hadronic B decays and electroweak penguins at Belle IIPublic
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 . We present the measurement of B lifetime and mixing frequency, the time dependent CP-violation analyses using the B0 → JψKS0 , B0 → φKS0 , B0 → KS0 KS… |
BELLE2-CONF-PROC-2023-007 | - | 2023-04-25 |
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Electroweak penguin, hadronic and time-dependent decays at Belle IIPublic
Electroweak penguin, hadronic, and time-dependent decays at Belle II talk for Moriond QCD 2023 |
BELLE2-TALK-CONF-2023-038 | - | 2023-04-25 |
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Semileptonic B decays at at Belle II including b→c anomaliesPublic
Semileptonic B decays at at Belle II including b→c anomalies |
BELLE2-TALK-CONF-2023-039 | - | 2023-04-25 |
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Quarkonium and charm physics at Belle IIPublic
New results from energy scan data and new flavor tagger for charm decays. |
BELLE2-TALK-CONF-2023-040 | - | 2023-04-25 |
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Dark sector and tau physics results at Belle IIPublic
Recent results on dark sector searches and tau physics at Belle II |
BELLE2-TALK-CONF-2023-041 | - | 2023-04-25 |
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Measurement of the time-dependent CP asymmetry of B0 → K0s,pi+,pi-,gamma decays in Belle and Belle IIPublic
Measurement of the time-dependent CP asymmetry of B0 → K0s,pi+,pi-,gamma decays in Belle and Belle II |
BELLE2-TALK-CONF-2023-054 | - | 2023-04-24 |
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Development of FastBDT Classifiers to Suppress Beam Background Clusters and Fake PhotonsPublic
We present an overview of the methodology used to develop FastBDT classifiers that suppress beam background clusters and fake photons, with the aim of using these classifiers to improve the signal-background separation power of the residual calorimeter energy E_ECL. The feature selection, hyperparameter tuning, and training of the classifiers is p… |
BELLE2-NOTE-PL-2023-003 | - | 2023-04-21 |
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Flavor Physics with Belle and Belle IIPublic
Belle II is a high-energy physics experiment searching for new physics in a large number of B meson, D meson, and tau lepton decays produced in electron-positron collisions at the SuperKEKB accelerator at KEK laboratory in Japan. Belle II has reported a handful of world-leading or competitive results to date. Examples of the results include the le… |
BELLE2-TALK-CONF-2023-055 | - | 2023-04-20 |
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Search for the rare decay B0->tau+ tau- at the Belle II ExperimentPublic
We aim to search for the rare decay 𝑩𝟎 → 𝝉"𝝉# at the Belle II experiment using the superKEKB asymmetric electron-positron collider. While the standard model predicts the decay mode to have a low branching fraction, various extensions of the model expect enhancements. The results will be obtained with data samples corresponding to an integrated lum… |
BELLE2-POSTER-CONF-2023-003 | - | 2023-04-20 |
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Muon and Tau CLFV studies from Belle-II and J-PARC experimentsPublic
Charged Lepton Flavor Violation (CLFV) refers to a violation of the "accidental" conservation of particle flavor, which is considered an unambiguous signature of new physics beyond the Standard Model of particle physics. The Belle experiment has extensively studied CLFV decays of the tau lepton. Currently, the COMET experiment is under constructio… |
BELLE2-TALK-CONF-2023-053 | - | 2023-04-20 |
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Measurements of LFU in B→D(*)lnu at B factoriesPublic
A review of recent Lepton Universality tests at BaBar, Belle, and Belle II |
BELLE2-TALK-CONF-2023-051 | - | 2023-04-12 |
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Measuremesnts of exclusive B semileptonic decays at Belle IIPublic
Exclusive semileptonic decays at Belle II, b to c |
BELLE2-TALK-CONF-2023-052 | - | 2023-04-12 |
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Experimental flavor physics overviewPublic
Summary of the search for heavy flavour physics anomalies at the B factories, Belle II and LHCb. |
BELLE2-TALK-CONF-2023-050 | - | 2023-04-11 |
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Dark-sector physics at Belle IIPublic
Review of the dark-sector physics at Belle II presented at the Aspen 2023 Winter Conference: "Prospecting for New Physics through Flavor, Dark Matter, and Machine Learning" |
BELLE2-TALK-CONF-2023-029 | - | 2023-03-30 |
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Recent quarkonium results at Belle IIPublic
Belle II offers unique possibilities for discovering and interpreting exotic multiquark bound states to probe the fundamentals of QCD. This talk presents recent results on a unique data set collected at energies above the Υ(4S), including searches for the hidden bottom transition between Y(10750) and χbJ. |
BELLE2-TALK-CONF-2023-028 | - | 2023-03-30 |
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Recent Belle II results related to flavor anomaliesPublic
Persistent anomalies reported by various experiments in $b \rightarrow c$ and $b \rightarrow s\ell\ell$ transitions hint at possible violation of lepton-flavor universality. The Belle II experiment at the SuperKEKB collider probes the relevant effects using observables complementary to those explored elsewhere. This talk reports recent results fro… |
BELLE2-TALK-CONF-2023-027 | - | 2023-03-29 |
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Overview of Belle II upgradesPublic
An overview of the current and planned upgrades with emphasis on LS2. |
BELLE2-TALK-CONF-2023-026 | - | 2023-03-29 |
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Overview of flavor physics including LHCb with status and prospects of Belle IIPublic
Belle II is a flavor physics experiment at the asymmetric 𝑒+𝑒− collider SuperKEKB in Japan. Belle II aims to record an order of magnitude more data than the previous Belle experiment. Belle II started operation in 2019 and has accumulated 430 fb−1 of data to date. I will present the status and plans of the Belle II experiment, and review its recen… |
BELLE2-TALK-CONF-2023-032 | - | 2023-03-27 |
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