Belle II Document Server 2,051 records found  beginprevious561 - 570nextend  jump to record: Search took 0.00 seconds. 
561. Experimental search for axions and ALPS in Belle II (and B factories in general) / Michael De Nuccio [BELLE2-TALK-DRAFT-2023-014] [BELLE2-TALK-CONF-2023-009]
15 February 2023
/ New Physics Signals
Axions and Axion-Like Particles (ALPs) are hypothetical particles that could help solve the strong QCD problem and/or act as dark matter or dark portals. [...]
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562. Recent results on hadronic decays and CP violation at Belle II / Ryogo Okubo [BELLE2-TALK-DRAFT-2023-015] [BELLE2-TALK-CONF-2023-008]
19 February 2023
/ Lake Louise Winter Institute 2023
This talk is about hadronic decays and CP violation of B meson..
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563. Recent results on semileptonic, radiative and electroweak penguins decays at Belle II / Svenja Katharina Granderath [BELLE2-TALK-DRAFT-2023-013] [BELLE2-TALK-CONF-2023-007]
19 February 2023
/ Lake Louise Winter Institute 2023
This talk discusses recent results from Belle II concerning semileptonic, electroweak or radiative penguin decays..
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564. Recent results on Dark-sector and tau lepton physics at Belle II / Sascha Dreyer [BELLE2-TALK-DRAFT-2023-018] [BELLE2-TALK-CONF-2023-006]
19 February 2023
/ Lake Louise Winter Institute 2023
The Belle II experiment at the SuperKEKB collider has unique sensitivity to a broad class of models that postulate the existence of dark matter particles with MeV—GeV masses. [...]
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565. Tau physics at Belle II / Michel Hernandez Villanueva [BELLE2-TALK-DRAFT-2023-016] [BELLE2-TALK-CONF-2023-005]
20 February 2023
/ The 5th KMI International Symposium
A presentation on the tau physics program at Belle II..
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566. Measurement of the photon-energy spectrum in inclusive B-> X_s gamma decays identified using hadronic decays of the recoil B meson in 2019–2021 Belle II data / Henrikas Svidras ; Arthur Bolz ; Lu Cao ; Markus Röhrken ; et al [BELLE2-CONF-DRAFT-2022-018] [BELLE2-CONF-PH-2022-018]
20 October 2022

We measure the photon-energy spectrum in radiative bottom-meson ($B$) decays into inclusive final states involving a strange hadron and a photon. [...]
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567. Performance studies of Thin Fine-Pitch Silicon Vertex Detector for Belle II Vertex Detector upgrade / Zihan Wang ; Yutaka Ushiroda [BELLE2-MTHESIS-2023-005] Presented on 27 07 2022 MSc
2022
The University of Tokyo / Tokyo
The Belle II experiment located at KEK, Tsukuba (Japan) precisely measures the Standard Model parameters analyzing various flavor physics processes to search for new physics beyond the Standard Model. [...]
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568. Search for muonic dark force and performance studies of lepton identification at Belle II / Rajesh Kumar Maiti ; Gianluca Inguglia [BELLE2-PTHESIS-2023-003] Presented on 20 01 2023 PhD
2023
Institut of High Energy Physics / Vienna
This thesis presents an advanced search strategy to find a new dark gauge boson 𝑍′ and performance studies of particle identification to assist the new physics searches, especially involving flavor-changing charge and neutral currents in semi- leptonic 𝐵 decays. [...]
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569. A measurement of the ratio of light-lepton inclusive semileptonic $B$ decay rates $R(X_{e/\mu})$ = $\mathcal{B}(B\to X e \nu)$ / $\mathcal{B}(B\to X \mu \nu)$ using $189\,\mathrm{fb}^{-1}$ of data at Belle~II / Henrik Junkerkalefeld [BELLE2-CONF-PROC-2023-006]
16 December 2022

In this work a measurement of the ratio of branching fractions of inclusive semileptonic $B$ meson decays, $R(X_{e/\mu})=\mathcal{B}(B\to X e \nu)/\mathcal{B}(B\to X \mu \nu)$ is reported as a probe of $e-\mu$ universality [...]
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570. Measurement of the time dependent CP Asymmetry of $B \to K^* \gamma$ decays in the Belle II experiment / Tristan Fillinger ; Jérôme Baudot [BELLE2-PTHESIS-2023-002] Presented on 30 09 2022 PhD
2022
Université de Strasbourg / Strasbourg
The Standard Model of particle physics, which describes the fundamental particles and their interactions, is the most successful theory in the history of science. [...]
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