Papers

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2022-03-09
08:35
Muon and electron identification efficiencies and hadron-lepton mis-identification rates at Belle II for Moriond 2022 / Charged PID Group ; The Belle II Collaboration [BELLE2-CONF-PH-2022-003]
09 March 2022

We present a collection of selected results on the performance of Belle II in the identification of electrons and muons. [...]
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2022-03-02
13:09
Measurements of the branching fraction and direct $\CP$-violating asymmetry in $\Bz \to \Kz \piz$ decays / S.~Hazra ; A.~B.~Basith ; G.~B.~Mohanty [BELLE2-CONF-PH-2022-002]
02 March 2022

We report the measurements of branching fraction ($\mathcal{B}$) and direct $\CP$-violating asymmetry ($\ACP$) in the charmless decays $\Bz\to K^0\pi^0$ at Belle~II. [...]
Fulltext: BELLE2-CONF-PH-2022-002_final_correction - Download fulltextPDF; BELLE2-CONF-PH-2022-002_public_final - Download fulltextPDF; BELLE2-CONF-PH-2022-002 - Download fulltextPDF; BELLE2-CONF-PH-2022-002_final - Download fulltextPDF; BELLE2-CONF-PH-2022-002_v2 - Download fulltextPDF; BELLE2-CONF-PH-2022-002_public - Download fulltextPDF;
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2022-03-02
06:08
Measurements of the branching fraction and direct $\CP$-violating asymmetry in $\Bz \to \Kz \piz$ decays / S.~Hazra ; A.~B. Kaliyar ; G.~B. Mohanty [BELLE2-CONF-PH-2022-002]
02 March 2022

We report the measurements of branching fraction ($\mathcal{B}$) and direct $\CP$-violating asymmetry ($\ACP$) in the charmless decays $\Bz\to K^0\pi^0$ at Belle~II..
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2022-03-02
05:54
Measurements of the branching fraction and direct $\CP$-violating asymmetry in $\Bz \to \Kz \piz$ decays / S.~Hazra ; A.~B. Kaliyar ; G.~B. Mohanty [BELLE2-CONF-PH-2022-001]
02 March 2022

We report the measurements of branching fraction ($\mathcal{B}$) and direct $\CP$-violating asymmetry ($\ACP$) in the charmless decays $\Bz\to K^0\pi^0$ at Belle~II. [...]
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2021-11-17
21:42
Measurement of the inclusive semileptonic B meson branching fraction in 62.8/fb of Belle II data / Manca Mrvar ; Christoph Schwanda [BELLE2-CONF-PH-2021-012]
17 November 2021

We report a measurement of the branching fraction of inclusive semileptonic B meson decays B -> Xc l nu in Υ(4S) -> BBbar data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e+e- collider and corresponding to 62.8/fb of integrated luminosity. [...]
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2021-10-10
16:05
Measurements of the branching fractions for B→K∗γ decays at Belle II / R. Tiwary ; R. Mehta ; R. Dhamija ; S Sandilya ; et al [BELLE2-CONF-PH-2021-004]
10 October 2021

This paper reports a study of B→K∗γ decays using 62.8±0.6 fb−1 of data collected during 2019–2020 by the Belle II experiment at the SuperKEKB e+e− asymmetric-energy collider, corresponding to (68.2±0.8)×10^6 BB events. [...]
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2021-10-07
09:11
Measurement of the $B^-\to D^0 \ell^- \bar\nu_\ell$ Branching Fraction in 62.8~fb$^{-1}$ of Belle II data / Philipp Horak ; Christoph Schwanda [BELLE2-CONF-PH-2021-011]
07 October 2021

We report a measurement of the branching fraction of the semileptonic decay \bdlnu (and its charge conjugate) using \mbox{$62.8~\text{fb}^{-1}$} of $\Upsilon(4S)\to B\bar B$~data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e^+ e^-$ collider. [...]
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2021-09-09
07:59
Exclusive $B \to X_u \ell \nu_\ell$ Decays with Hadronic Full-event-interpretation Tagging in 62.8\invfb of Belle II Data / Moritz Bauer ; Pablo Goldenzweig ; Nadia Toutounji ; Kevin Varvell [BELLE2-CONF-PH-2021-013]
09 September 2021

We present a reconstruction in early data of the semileptonic decay $B^+ \to \pi^0 \ell^+ \nu_\ell$, and first results of a reconstruction of the decays $B^+ \to \rho^0 \ell^+ \nu_\ell$ and $B^0 \to \rho^- \ell^+ \nu_\ell$ in a sample corresponding to 62.8\invfb of Belle II data using hadronic $B$-tagging via the full-event-interpretation algorithm. [...]
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2021-07-06
04:38
Measurement of the branching fraction for $B^{0} \to \pi^{0} \pi^{0}$ decays reconstructed in 2019–2020 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. [...]
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2021-06-23
14:18
Rediscovery of $\Bz\to\jpsi\KL$ at Belle II / Belle II Collaboration [BELLE2-CONF-PH-2021-002]
23 June 2021

We present preliminary results on the reconstruction of the \bjpsikl decay, where $\jpsi\to\mumu$ or \epem. [...]
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