Belle II Document Server 2,012 records found  beginprevious363 - 372nextend  jump to record: Search took 0.00 seconds. 
363. Semileptonic B decays at Belle II and Belle / Youngjoon Kwon [BELLE2-TALK-DRAFT-2023-102] [BELLE2-TALK-DRAFT-2023-107] [BELLE2-TALK-CONF-2023-098] 20 minutes including discussions
18 July 2023
/ The 30th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2023)
Precise determination of the magnitudes and phases of the elements, in particular, Vcb and Vub, of the Cabibbo-Kobayashi-Maskawa (CKM) matrix is crucial for testing the unitarity of the CKM matrix, hence testing the Standard Model. [...]
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364. 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. [...]
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365. 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. [...]
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366. The study of K0L Identification with ECL Information at Belle II experiment / Jheng-Hao Su [BELLE2-MTHESIS-2023-035] Presented on 20 06 2023 MSc
2023
Graduate Institute of Applied Physics / Taipei
We can study K0L through K0L particle list reconstructed from ECL cluster or KLM cluster. [...]
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367. Search for the decay $B \rightarrow D^* \eta \pi$ in Belle II / Vismaya V S ; S. Sandilya ; K. Trabelsi [BELLE2-CONF-PROC-2023-028]
12 July 2023

Recent measurements of semileptonic decays show a difference between the branching ratio of the sum of exclusive decay rates and the inclusive $b \rightarrow c \ell \nu$ decay rate (the so-called Semi-Leptonic (SL) gap) which affects the interpretation of the CKM element $|Vcb|$. [...]
Fulltext: BELLE2-CONF-PROC-2023-028 - Download fulltextPDF; BELLE2-CONF-PROC-2023-028_v1 - Download fulltextPDF;
368. Charged Particle Identification Performances in Belle II / Swarna Prabha Maharana; ; Vismaya V S; ; Saurabh Sandilya [BELLE2-CONF-PROC-2023-027]
12 July 2023

An efficient Particle identification(PID) is crucial for Belle II as it deals with a much higher event rate than Belle and ultimately with a more extensive background. [...]
Fulltext: 2022_DAE_BRNS_HEP_Proceedings_v2 - Download fulltextPDF; BELLE2-CONF-PROC-2023-027 - Download fulltextPDF;
369. Charged Particle Identification with the TOP detector at Belle II / Vismaya V S ; L. Nayak ; S. Sandilya [BELLE2-CONF-PROC-2023-026]
12 July 2023

The Belle II detector is located at the SuperKEKB energy-asymmetric $e^{+}$-$e^{-}$ collider and has acquired the world’s highest instantaneous luminosity this year. [...]
Fulltext: BELLE2-CONF-PROC-2023-026_v1 - Download fulltextPDF; BELLE2-CONF-PROC-2023-026 - Download fulltextPDF;
370. Study of photon energy bias using π0 → γγ decays from D∗+ −→ D0(→ K−π+π0)π+ at Belle II / Chanchal Sharma [BELLE2-CONF-PROC-2023-025]
12 July 2023

Photon energy bias is used to compute the corrections to the reconstructed photon energy and improve data-simulation agreement in analyses having final states with photons. [...]
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371. Search for Wrong-Sign D0 → K+π−π0 decay at Belle II / Chanchal Sharma [BELLE2-CONF-PROC-2023-024]
12 July 2023

In the standard model, mixing and CP violation in the charm sector are expected to be very small, and thus, they constitute a sensitive probe for potential new physics contributions. [...]
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372. Measurements of the ratio of partial widths: $\Gamma(D^{*+}_{s} \to D_{s}^{+}\pi^{0})/\Gamma(D_{s}^{*+} \to D_{s}^{+ }\gamma)$ / Latika Aggarwal ; Sunil Bansal ; Vishal Bhardwaj [BELLE2-CONF-PROC-2023-023]
11 July 2023

We demonstrate the feasibility studies to measure the ratio of partial widths $\Gamma(D_{s}^{*+ } \to D_{s}^{+ }\pi^{0})/\Gamma(D_{s}^{*+} \to D_{s}^{+}\gamma)$ with the Belle II detector..
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