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Flavor physics with electroweak-penquins and semileptonic decays at Belle IIPublic
In the recent years, several measurements of B-decays with flavor changing neutral currents, i.e. 𝑏→𝑠 transitions hint at deviations from the Standard Model (SM) predictions. In addition there are discrepancies with the SM predictions in 𝑏→𝑐𝜏𝜈 decays. The Belle II experiment is a substantial upgrade of the Belle detector and operates at the SuperK… |
BELLE2-TALK-CONF-2022-006 | - | 2021-12-29 |
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Quarkonium at Belle IIPublic
The Belle II experiment at the SuperKEKB energy-asymmetric e+e− collider is an upgrade of the B factory facility at KEK in Tsukuba, Japan. The experiment began operation in 2019 and aims to record a factor of 50 times more data than its predecessor. Belle II is uniquely capable of studying the so-called "XYZ" particles: heavy exotic hadrons consis… |
BELLE2-TALK-CONF-2022-005 | - | 2021-12-29 |
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The Belle II: status and prospectsPublic
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 target luminosity of the machine is 6×1035 cm−2s−1 and the Belle II experiment aims to record 50 ab−1 of data, a factor of 50 more than its predecessor. With this data set, Belle II will be… |
BELLE2-TALK-CONF-2022-007 | - | 2021-12-29 |
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Status and outlook for R(D*) and R(K*) from Belle IIPublic
Talk at the DWQ@25 workshop on the status and outlook for RD(*) and RK(*) from Belle/Belle II. |
BELLE2-TALK-CONF-2022-002 | - | 2021-12-13 |
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Dark sector physics at Belle IIPublic
Overview on dark sector searches at Belle II: recent results and future prospects. |
BELLE2-TALK-CONF-2022-003 | - | 2021-12-13 |
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Precise measurements of the $D$ meson lifetimesPublic
We report the result of $D^0$ and $D^+$ lifetime measurement using $\Dz$ and $\Dp $ decays reconstructed using $72~{\rm fb^{-1}}$ of data collected by the Belle II experiment at SuperKEKB asymmetric-energy $e^+e^−$ collider. The results, $\tau(D^0)=410.5\pm1.1({\rm stat})\pm0.8({\rm syst})~{\rm fs}$ and $\tau(D^+)=1030.4\pm4.7({\rm stat})\pm 3.1({… |
BELLE2-CONF-PROC-2021-024 | - | 2021-12-10 |
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Flavour Physics with Electroweak-Penguin and Semileptonic Decays at Belle IIPublic
In the recent years, several measurements of B-decays with flavor changing neutral currents, i.e. $b \to s$ transitions hint at deviations from the Standard Model (SM) predictions. In addition there are discrepancies with the SM predictions in $ b \to c \tau \nu$ decays. The Belle II experiment is a substantial upgrade of the Belle detector and op… |
BELLE2-TALK-CONF-2021-139 | - | 2021-11-30 |
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Precision measurements of the 𝐷^0 and 𝐷^+ meson lifetimes with the Belle II detectorPublic
We present measurements of the D^0 and D+ meson lifetimes with the Belle II detector. The measurements are compatible with current world averages and more precise. |
BELLE2-TALK-CONF-2021-138 | - | 2021-11-29 |
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Particle identification with the Belle II calorimeter using machine learningPublic
The Belle II experiment is located at the asymmetric SuperKEKB e+e- collider in Tsukuba, Japan. The Belle II electromagnetic calorimeter (ECL) is designed to measure the energy deposited by charged and neutral particles. It also provides important contributions to the particle identification system. Identification of low-momenta muons and pions in… |
BELLE2-POSTER-CONF-2021-002 | - | 2021-11-24 |
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A new Software Training Model at Belle IIPublic
The physics output of modern experimental HEP collaborations hinges not only on the quality of its software but also on the ability of the collaborators to make the best possible use of it. With the COVID-19 pandemic making in-person training impossible, the training paradigm at Belle II was shifted towards one of guided self-study. To that end, t… |
BELLE2-POSTER-CONF-2021-003 | - | 2021-11-24 |
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Punzi-lossPublic
The search for new particles requires robust classification methods, with the ability to be optimised for unknown cross sections and particle masses. We present a new loss function, 'Punzi-loss', based on the so-called Punzi figure of merit (FOM). We refer to a neural network trained with the Punzi-loss function as a 'Punzi-net', and investigate i… |
BELLE2-POSTER-CONF-2021-001 | - | 2021-11-24 |
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Highlights from Belle and Belle IIPublic
Highlights from Belle and Belle II |
BELLE2-TALK-CONF-2021-140 | - | 2021-11-23 |
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Charmless B decay measurements at Belle IIPublic
We report preliminary measurements of chramless B decays based on the sample collected during 2019-2020 operations and corresponding to 63 fb−1 of integrated luminosity. |
BELLE2-TALK-CONF-2021-145 | - | 2021-11-22 |
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Exclusive semileptonic decays at Belle IIPublic
A number of recent results for exclusive semi-leptonic decays at Belle II is presented, for the CKM2021 conference. |
BELLE2-TALK-CONF-2021-143 | - | 2021-11-22 |
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Radiative B decays at Belle and Belle IIPublic
Radiative B decays at Belle and Belle II. |
BELLE2-TALK-CONF-2022-008 | - | 2021-11-22 |
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Early charm results and prospects at Belle IIPublic
We present measurements of the D^0 and D+ meson lifetimes with the Belle II detector. The measurements are compatible with current world averages and more precise. |
BELLE2-TALK-CONF-2021-144 | - | 2021-11-22 |
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Mixing and mixing-related CP violation in the B system at Belle and Belle IIPublic
Mixing and Mixing related CP violation in the B system, talk at CKM 21, 40 minutes (maybe). On behalf of both Belle and Belle II. |
BELLE2-TALK-CONF-2021-147 | - | 2021-11-22 |
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Belle II results and perspectivesPublic
In this talk, I first give the introduction of Belle II experiment, then show some perspectives on the XYZ states in charmonium and bottomonium regions including some latest results at Belle II. |
BELLE2-TALK-CONF-2021-148 | - | 2021-11-22 |
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Prospects for measurements of Vus, Vcd and Vcs at Belle IIPublic
Vcx prospects from leptonic and semileptonic charm decays and Vus prospects in tau decay at Belle II. |
BELLE2-TALK-CONF-2021-146 | - | 2021-11-22 |
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First results of B→DK results at Belle IIPublic
We report first results of observables related to B to hadronic decays using 62.8 fb-1 of Belle II data sets and the first measurement of CKM angle phi3 from the combined data set of Belle and Belle II. |
BELLE2-TALK-CONF-2021-142 | - | 2021-11-22 |
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