Papers

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2022-07-21
13:45
Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in {\boldmath $B \to J/\psi K$} decays at Belle II / S. Halder ; R. Tiwary ; S. Sandilya ; G. B. Mohanty [BELLE2-CONF-PH-2022-006]
21 July 2022

We report a study of $B \to J/\psi(\ell^{+}\ell^{-}) K$ decays, where $\ell$ represents an electron or a muon, using $e^{+}e^{-}$ collisions at the $\Upsilon(4S)$ resonance [...]
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2022-06-23
05:16
Angular analysis of $B^+ \to \rho^+\rho^0$ decays reconstructed in 2019, 2020, and 2021 Belle~II data / M.~Dorigo ; E.~Ganiev ; R.~Manfredi ; S.~Raiz ; et al [BELLE2-CONF-PH-2022-005]
23 June 2022

We report on a Belle II measurement of the branching fraction~($\mathcal{B}$), longitudinal polarization fraction ~($f_L$), and \CP~asymmetry~$\mathcal{A}_{\CP}$ of $B^+\to \rho^+\rho^0$ decays. [...]
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2022-06-17
13:22
Test of lepton flavor universality in inclusive semileptonic B decays at Belle II / Henrik Junkerkalefeld ; Peter Lewis ; Florian Bernlochner ; Jochen Dingfelder ; et al [BELLE2-CONF-PH-2022-004]
17 June 2022

We present the measurement of the ratio of branching fractions of inclusive semileptonic \B decays, $\RXemu=\BFXenu/\BFXmunu$, with a hadronic tagged analysis using \lumion of \belletwo data. [...]
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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. [...]
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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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