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1.
| "New LFV results from e^+e^- colliders
/ Devender Kumar
[BELLE2-TALK-DRAFT-2023-179_v2]
[BELLE2-TALK-CONF-2023-175]
25min
29 November 2023
/ HQL2023
Various physics models, such as supersymmetry, two-Higgs doublet, leptoquark, etc., predict the branching fractions for LFV decay modes, which can be observed in the high luminosity modern experiment. [...]
Fulltext:  PDF; |
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2.
| Recent Belle II results on semileptonic B decays and tests of lepton-flavor universality
/ Kazuki Kojima
[BELLE2-TALK-DRAFT-2023-099]
[BELLE2-TALK-CONF-2023-097]
15 minutes (12 minutes presentation + 3 minutes Q&A) https://www.leptonphoton2023.org/
18 July 2023
/ Lepton Photon 2023
Semileptonic $B$-meson decays allow for determining the magnitudes of the CKM matrix parameters $|V_{cb}|$ and $|V_{ub}|$, two fundamental parameters of the SM flavor sector and to probe the excess rate of semitauonic $B$ decays, which has been consistently above expectations in recent years. [...]
Fulltext: PDF; |
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3.
| Belle~II results related to $b \to c$ anomalies
/ Kazuki Kojima
[BELLE2-TALK-CONF-2023-025]
[BELLE2-CONF-PROC-2023-029]
Contribution to the 2023 Electroweak session of the 57th Rencontres de Moriond
17 July 2023
We report two new measurements for tests of lepton flavor universality between electrons and muons using semileptonic $B$ decays with a data set of $189~\mathrm{fb}^{-1}$ collected at the Belle II experiment between 2019 and 2021. [...]
Fulltext: PDF; |
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4.
| Belle~II results related to $b \to c$ anomalies
/ Kazuki Kojima
[BELLE2-TALK-CONF-2023-025] [BELLE2-TALK-DRAFT-2023-027] [BELLE2-PUB-DRAFT-2022-012] [BELLE2-PUB-DRAFT-2023-007]
[BELLE2-CONF-DRAFT-2023-017]
Page limit: 4 pages https://moriond.in2p3.fr/2023/EW/Contributions.html
10 July 2023
We report two novel measurements for tests of lepton flavor universality between electrons and muons using semileptonic $B$ decays with a data set of $189~\mathrm{fb}^{-1}$ collected at the Belle II experiment between 2019 and 2021. [...]
Version1: PDF; Version2: PDF; Version3: PDF; |
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5.
| Recent Belle II results related to flavor anomalies
/ Kazuki Kojima
[BELLE2-NOTE-PH-2021-042] [BELLE2-NOTE-PH-2022-031] [BELLE2-TALK-DRAFT-2023-028]
[BELLE2-TALK-CONF-2023-027]
15 minutes (13 minutes presentation + 2 minutes Q&A) https://indico.in2p3.fr/event/28466/
29 March 2023
/ International Conference on the Physics of the Two Infinities
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. [...]
Fulltext: PDF; |
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6.
| Belle II results related to b→c anomalies
/ Kazuki Kojima
[BELLE2-NOTE-PH-2021-042] [BELLE2-NOTE-PH-2022-031 ] [BELLE2-TALK-DRAFT-2023-027]
[BELLE2-TALK-CONF-2023-025]
7 minutes (5 minutes presentation + 2 minutes Q&A) https://moriond.in2p3.fr/2023/EW/
20 March 2023
/ 57th Rencontres de Moriond 2023: Electroweak Interactions & Unified Theories
Recent Belle II results of light-lepton flavor universality tests for b→c anomalies using semileptonic B decays are shown. [...]
Fulltext: PDF; |
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7.
| Tau physics results and prospects at Belle II
/ A. De Yta-Hernandez
[BELLE2-CONF-PROC-2021-023]
31 October 2021
The Belle II experiment operates at the SuperKEKB energy-asymmetric 𝑒+𝑒− collider. [...]
Fulltext: PDF; |
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8.
| Belle II experiment sensitivity to the LFV decay tau -> l + alpha
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2021-011]
22 September 2021
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 [...]
Fulltext: PDF; |
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9.
| Belle II experiment sensitivity to the LFV decays tau -> l + alpha
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2021-010]
22 September 2021
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 [...]
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10.
| Search for the LFV-Decay τ→ μπ⁰
/ Marton Nemeth-Csoka ; Felix Meggendorfer ; Christian Kiesling
[BELLE2-TALK-CONF-2021-007]
12 Minutes
10 March 2021
/ DPG Spring 2021
With the start of data taking using the Belle II detector at the SuperKEKB electron-positron collider a new era in searches for New Physics is on the horizon. [...]
Fulltext: PDF; |
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