|
920.
| Sensitivity studies on the lepton universality in the channel $\Upsilon(nS)\rightarrow \ell \ell$ via initial-state radiation
/ Gian Luca Pinna Angioni ; Umberto Tamponi
[BELLE2-NOTE-PL-2021-006]
16 July 2021
In this note, we present the results of sensitivity studies on the lepton universality in the channel Ο(nS) β π΅π΅ via initial-state radiation (ISR). [...]
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921.
| Study of π΅ β π^ββ^+π_β Decays Using Fully Reconstructed Ο(4π) β π΅ \bar π΅ Events at the Belle II Experiment
/ Yaroslav Kulii ; Thomas Kuhr
[BELLE2-MTHESIS-2021-070]
Presented on 15 09 2020 MSc
2020
Ludwig Maximilian University
/ Munich
We present the results of a study of exclusively reconstructed π΅ β π^ββ^+π_β decays, where β is an electron or a muon. [...]
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922.
| Measurement of the branching fraction for $B^{0} \to \pi^{0} \pi^{0}$ decays reconstructed in 2019β2020 Belle II data
/ Francis Pham ; Martin Sevior
[BELLE2-CONF-PH-2021-003]
23 pages, 10 figures. Supporting material for Winter 2021 conferences
06 July 2021
We report the first reconstruction of the $B^{0} \to \pi^{0} \pi^{0}$ decay mode at Belle II using samples of 2019 and 2020 data that correspond to 62.8 \invfb of integrated luminosity. [...]
Fulltext: PDF; |
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923.
| Construction of Angular Observables Sensitive to New Physics in $\bar B\to D^*\tau^-\bar \nu_\tau$ Decays and Measurements of Differential Cross Sections of $\bar B\to D^*\ell^-\bar\nu_\ell$ Decays with Hadronic Tagging at Belle
/ Kilian Lieret ; Thomas Kuhr ; Martin Jung ; Gerhard Buchalla
[BELLE2-MTHESIS-2021-069]
Presented on 16 09 2018 MSc
2018
Ludwig Maximilian University of Munich
/ Munich
Recent measurements of $\bar B\to D^{(*)}\ell^-\bar\nu_\ell$ cross sections at Belle, BaBar, and LHCb challenge lepton universality and thus the Standard Model at a combined confidence level close to four standard deviations. [...]
Thesis: PDF; |
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924.
| Sensitivity Study of $B^{+}\rightarrow \mu^{+}\nu$ in the Belle II Experiment
/ Yen-Ting Chin ; Pao-Ti Chang
[BELLE2-MTHESIS-2021-068]
Presented on 25 01 2021 MSc
2021
National Taiwan University
/ Taipei, Taiwan
In this study, we intend to estimate the statistical significance of $B^{+}\rightarrow \mu^{+}\nu$ when various amounts of Belle II data are available in the future, assuming that the Standard Model estimation of the branching fraction of $B^{+}\rightarrow \mu^{+}\nu$ is correct. [...]
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925.
| A Study of Dark Matter at Electron-Positron Colliders using High Performance Computing
/ Kihong Park ; Kihyeon Cho
[BELLE2-MTHESIS-2021-067]
Presented on 02 06 2021 MSc
2021
UST/KISTI
/ Daejeon, Korea
Even if the Standard Model (SM) describing particles that constitutes the universe and its interactions is well established, the SM cannot explain dark matter. [...]
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926.
| Calibration of aerogel ring-imaging Cherenkov detector in Belle II spectrometer
/ Manca Mrvar
[BELLE2-PTHESIS-2021-014]
Presented on 10 01 2019 PhD
2019
University of Ljubljana
/ Ljubljana, Slovenia
The Aerogel Ring-Imaging Cherenkov (ARICH) detector provides a charged particle identification in the endcap region of the Belle II spectrometer at the SuperKEKB asymmetric-energy e + e β collider in Tsukuba, Japan. [...]
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927.
| FPGA-based Self-repairing Digital Circuits Design for the Belle II Experiment
/ Sara Massarotti ; Raffaele Giordano
[BELLE2-MTHESIS-2021-066]
Presented on 17 02 2021 MSc
2021
University of Naples "Federico II"
/ Naples (Italy)
Belle II is a High-Energy Physics (HEP) experiment designed for measurements in the heavy flavor sector of the Standard Model (SM) and for New Physics (NP) searches. [...]
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928.
| Track selection optimisation for Ο studies at Belle II
/ Robin Leboucher ; Justine Serrano
[BELLE2-MTHESIS-2021-065]
Presented on 01 07 2020 MSc
2020
Centre de Physique des Particules de Marseille
/ Marseille, France
Being forbidden in the Standard Model, lepton flavour violating decays appears to be a good probe for searching physics beyond the standard model. [...]
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929.
| Search for B -> K(*)Ξ½Ξ½ decays in the Belle II experiment
/ GΓΌney Polat ; Isabelle Ripp-Baudot
[BELLE2-MTHESIS-2021-064]
Presented on 21 06 2019 MSc
2019
IPHC
/ Strasbourg
The B -> K(*)Ξ½Ξ½ decay channel, never discovered to this day, is actively sought in the Belle II experiment: its branching ratio is in the order of magnitude of 10^(β6) and could be significantly changed if new physics occurred in the decay process. [...]
Fulltext: PDF; |
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