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B anomalies at Belle IIPublic
B anomalies at Belle II, b->c tau nu, b->s ll prospect and early results. |
BELLE2-TALK-CONF-2021-150 | - | 2021-11-03 |
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Tau physics results and prospects at Belle IIPublic
The Belle II experiment operates at the SuperKEKB energy-asymmetric 𝑒+𝑒− collider. Belle II is a substantial upgrade of the Belle detector and has a broad 𝜏 physics program, in particular in searches for lepton flavor and lepton number violations (LFV and LNV). We expect that after 5 years of data taking, Belle II will be able to improve the sensi… |
BELLE2-CONF-PROC-2021-023 | - | 2021-10-31 |
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The operation and performance of the TOP detector at the Belle II experimentPublic
The SuperKEKB/Belle II experiment, the successor of the KEKB/Belle experiment at KEK, started the physics data taking with the full detector system in March 2019. The Time-of-Propagation (TOP) detector was integrated into the Belle II detector for charged particle identification in the barrel region. The TOP detector mainly consists of quartz radi… |
BELLE2-TALK-CONF-2021-128 | - | 2021-10-31 |
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BPAC Review in summer 2021: Jul 12-14, 2021Public
B-factory Programme Advisory Committee Full report for Focused Review Meeting 12 and 13 July 2021 Remote Meeting |
BELLE2-REPORT-2024-012 | - | 2021-10-28 |
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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-2021-129 | - | 2021-10-23 |
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CP violationPublic
Talk given at the 32nd Rencontres de Blois. An experimental review of CP violation results, mainly from Belle II and LHCb. |
BELLE2-TALK-CONF-2021-126 | - | 2021-10-20 |
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Belle II first resultsPublic
Latest results from Belle II 32nd Rencontres de Blois October 17 - 22, 2021 Blois, France |
BELLE2-TALK-CONF-2021-131 | - | 2021-10-17 |
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CP violation (experimental review)Public
Recent CP violation results from Belle II, and LHC experiments are presented |
BELLE2-TALK-CONF-2021-130 | - | 2021-10-17 |
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Dark sector physics at Belle IIPublic
This talk summarises a selection of current dark sector searches ongoing at Belle II. |
BELLE2-TALK-CONF-2021-132 | - | 2021-10-17 |
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Recent quarkonium results at Belle IIPublic
Belle II offers unique possibilities for the discovery and interpretation of exotic multiquark combinations to probe the fundamentals of QCD. This talk present recent searches for the hidden bottom transition between Y(10750) and χbJ, as well as other results from an energy scan around 10.75 GeV. |
BELLE2-TALK-CONF-2022-125 | - | 2021-10-11 |
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Measurements of the branching fractions for B→K∗γ decays at Belle IIPublic
This paper reports a study of B→K∗γ decays using 62.8±0.6 fb−1 of data collected during 2019–2020 by the Belle II experiment at the SuperKEKB e+e− asymmetric-energy collider, corresponding to (68.2±0.8)×10^6 BB events. We find 454±28, 50±10, 169±18, and 160±17 signal events in the decay modes B0→K∗0[K+π−]γ, B0→K∗0[K0Sπ0]γ, B+→K∗+[K+π… |
BELLE2-CONF-PH-2021-014 | - | 2021-10-10 |
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Measurement of the $B^-\to D^0 \ell^- \bar\nu_\ell$ Branching Fraction in 62.8~fb$^{-1}$ of Belle II dataPublic
We report a measurement of the branching fraction of the semileptonic decay \bdlnu (and its charge conjugate) using \mbox{$62.8~\text{fb}^{-1}$} of $\Upsilon(4S)\to B\bar B$~data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e^+ e^-$ collider. The neutral charm meson is searched for in the decay mode $D^0\to K^-\pi^+$ and… |
BELLE2-CONF-PH-2021-011 | - | 2021-10-07 |
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Charmonium-like studies at Belle IIPublic
The Belle II experiment has accumulated data corresponding to 213 fb^{-1} integrated luminosity in the past two years. Belle II plans to accumulate 50 ab^{ -1} of data which is expected to bring a large impact to the field of hadron spectroscopy. We present here the analysis of B → K J/ψπ+π- and B → Kψ(2S) using 62.8 fb^{-1} of data at Belle II. W… |
BELLE2-CONF-PROC-2021-022 | - | 2021-10-07 |
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B anomalies at Belle IIPrecision measurements of CKM parametersPublic
Semileptonic B decays allow measurements of the magnitudes of the CKM matrix elements V_cb and V_ub, thus providing access to fundamental parameters of the theory. Thanks to the low-background collision environment along with the possibility of partially or fully reconstructing one of the two B mesons in the event, Belle II is expected to greatly … |
BELLE2-TALK-CONF-2021-133 | - | 2021-10-04 |
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Search for $B \rightarrow K \nu \bar{\nu}$ and other electroweak/radiative penguin processes at Belle IIPublic
This contribution summarizes the first results from searches for electroweak and radiative penguin processes at the \belletwo experiment installed at the SuperKEKB asymmetric energy electron-positron collider. The data sample considered by the analyses corresponds to an integrated luminosity of $63\invfb$ collected at the \Y4S resonance. A brief … |
BELLE2-CONF-PROC-2021-021 | - | 2021-10-03 |
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Status and prospects for tau property measurements at Belle IIPublic
The Belle II experiment is a substantial upgrade of the Belle detector, operating at the SuperKEKB energy-asymmetric e+e− collider. The design luminosity of the machine is 8 × 10^35 cm−2s−1, and the Belle II experiment aims to record 50 ab−1 of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a … |
BELLE2-TALK-CONF-2021-124 | - | 2021-09-27 |
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Future directions on tau physics with Belle IIPublic
Future directions on tau physics with Belle II |
BELLE2-TALK-CONF-2021-125 | - | 2021-09-27 |
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Belle II: status and prospectsPublic
Belle II at the electron-positron collider SuperKEKB is the successor to the Belle experiment. Its design luminosity is 6 · 1035/(cm2s), 40 times the record achieved at KEKB/Belle, at the same center of mass energy in the bottomonium region. Over the next years it is expected to accumulate an integrated luminosity of 50 ab−1, collecting by far the… |
BELLE2-TALK-CONF-2021-116 | - | 2021-09-23 |
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Belle II experiment sensitivity to the LFV decays tau -> l + alphaPublic
We study the charged lepton flavor violating decay tau -> l alpha, where alpha is a non-standard invisible boson that leaves the Belle II detector undetected and l is either an electron or a muon. This Note presents plots showing the optimization procedure, relevant observables, and upper limit estimates using Belle II simulated data, assuming no … |
BELLE2-NOTE-PL-2021-010 | - | 2021-09-22 |
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Belle II experiment sensitivity to the LFV decay tau -> l + alphaPublic
We study the charged lepton flavor violating decay tau -> l alpha, where alpha is a non-standard invisible boson that leaves the Belle II detector undetected and l is either an electron or a muon. This Note presents plots showing the optimization procedure, relevant observables, and upper limit estimates using Belle II simulated data, assuming no … |
BELLE2-NOTE-PL-2021-011 | - | 2021-09-22 |
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