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10.
| Measurements of $\left|V_{cb}\right|$ and $\left|V_{ub}\right|$ at Belle and Belle$~$II
/ Michele Aversano
[BELLE2-CONF-PROC-2024-023]
27 September 2024
The Belle and Belle$~$II experiments have collected a 1.1 ab$^{-1}$ sample of collisions at the $\Upsilon(4S)$ resonance. [...]
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11.
| Measurement of the properties of B0 → π0π0 decays at Belle II
/ Sebastiano Raiz ; Diego Tonelli
[BELLE2-PTHESIS-2024-018]
Presented on 17 05 2024 PhD
2024
University Of Trieste
/ Trieste
This experimental particle-physics thesis reports measurements of the branching fraction and charge-parity (CP) violating decay-rate asymmetry of B0 → π0π0 decays reconstructed in electron-positron collisions with the Belle II detector. [...]
Fulltext: PDF; |
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12.
| Recent highlights from the Belle and Belle II experiments
/ Yubo Han
[BELLE2-CONF-PROC-2024-022]
22 September 2024
The Belle experiment at the KEKB factory in Tsukuba served as a B factory with the primary goal of discovering CP violation (CPV) in B meson decays and confirming the Cabibbo-Kobayashi-Maskawa (CKM) paradigm [...]
Fulltext: PDF; |
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13.
| Study of sPlot Background Subtraction for Particle Identification Efficiency Determination at Belle II
/ Lars von der Werth ; Stefan Wallner
[BELLE2-UTHESIS-2024-003]
Presented on 29 10 2024 BSc
2024
Max Planck Institut for Physics
/ Garching
Particle identification is a central experimental challenge in the precise measurement of Standard Model parameters and in the search for new physics beyond the standard model at the Belle II experiment. [...]
Fulltext: PDF; |
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14.
| Searches for lepton-flavour violation in $\tau$ decays at Belle and Belle$~$II
/ Wenzhe Li
[BELLE2-CONF-PROC-2024-021]
15 August 2024
The Belle II experiment is an upgrade of the Belle experiment, and both have extensive plans to search for new physics, in particular to search for lepton flavour and number and baryon number violations (LFV, LNV and BNV) in tau decays. [...]
Fulltext: BELLE2-CONF-PROC-2024-021-V2 - PDF; BELLE2-CONF-PROC-2024-021-V3 - PDF; BELLE2-CONF-PROC-2024-021 - PDF; |
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15.
| Measurements of electroweak penguin and lepton-flavour violating $B$ decays to final states with missing energy at Belle and Belle II
/ Meihong Liu
[BELLE2-CONF-PROC-2024-020]
11 September 2024
Electroweak penguin and lepton-flavour violating $B$ decays are key focuses of the Belle II physics program. [...]
Fulltext: PDF; |
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16.
| Tests of lepton universality in the rates of inclusive semileptonic B-meson decays at Belle II
/ Henrik Junkerkalefeld ; Jochen Dingfelder ; Peter Lewis ; Florian Bernlochner
[BELLE2-PTHESIS-2024-017]
Presented on 28 06 2024 PhD
2024
Physikalisches Institut
/ Bonn
This thesis presents two precision tests of lepton universality: the first measurement of the ratio of light-lepton branching fractions of inclusive semileptonic $B$-meson decays, $R(X_{e/mu}) = \mathcal{B}(B \to Xe\nu) / \mathcal{B}(B \to X\mu\nu)$, and the first successful measurement of inclusive $B \to X\tau\nu$ decays, measured in a ratio relative to $B \to X\ell\nu$ decays ($\ell = e, \mu$), $R(X_{\tau/\ell}) = \mathcal{B}(B \to X\tau\nu) / \mathcal{B}(B \to X\ell\nu)$. [...]
Fulltext: PDF; |
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17.
| Search for B+ -> K+ nu nubar at Belle II using Graph Neural Networks
/ Merna Abumusabh ; Giulio DUJANY ; Jacopo CERASOLI
[BELLE2-MTHESIS-2024-021]
Presented on 19 06 2024 MSc
2024
IPHC
/ Strasbourg
This work presents the search for the decay of a charged B-meson into a charged kaon and a pair of neutrinos via graph-tagged analysis, which is an approach based on graph neural network, in Belle~II, which is operating at the asymmetric electron-positron collider SuperKEKB located at KEK, Tsukuba, Japan. [...]
Fulltext: PDF; |
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18.
| BSM discovery potential at Belle II
/ Karim Trabelsi
[BELLE2-TALK-DRAFT-2024-120]
[BELLE2-TALK-CONF-2024-117]
19 August 2024
/ QCHSC 2024 - XVIth Quark Confinement and Hadron Spectrum conference
BSM discovery potential at Belle II
Fulltext: PDF; |
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19.
| Recent results from Belle and Belle II
/ Cristina Martellini
[BELLE2-TALK-DRAFT-2024-123]
[BELLE2-TALK-CONF-2024-116]
26 August 2024
/ XIII International Conference on New Frontiers in Physics
The Belle II experiment has collected 424 fb$^{-1}$ sample of $e^+e^-$ collisions produced by the asymmetric SuperKEKB collider, at a centre-of-mass energy equal to or near the mass of the $\Upsilon(4S)$ resonance. [...]
Fulltext: PDF; |
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