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Measurement of the inclusive semileptonic $B$ meson branching fraction in 62.8 fb $^{-1}$ of Belle II data / Belle-II Collaboration
We report a measurement of the branching fraction of inclusive semileptonic

B

$B$ meson decays

B \to X_{c} ℓ ν ℓ

$B\to X_c\ell\nu\ell$ in

Υ (4 S) \to B ¯ B

$\Upsilon(4S)\to B\bar B$ ~data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy

e^{+} e^{-}

$e^+e^-$ collider and corresponding to 62.8 fb

^{- 1}

$^{-1}$ of integrated luminosity. [...]
arXiv:2111.09405 ; BELLE2-CONF-PH-2021-012. - 17.
Fulltext

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Exclusive $B \to X_u \ell \nu_\ell$ Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb $^{-1}$ of Belle II Data / Belle-II Collaboration
We present a reconstruction in early data of the semileptonic decay

B^{+} \to π^{0} ℓ^{+} ν_{ℓ}

$B^+ \to \pi^0 \ell^+ \nu_\ell$ , and first results of a reconstruction of the decays

B^{+} \to ρ^{0} ℓ^{+} ν_{ℓ}

$B^+ \to \rho^0 \ell^+ \nu_\ell$ and

B^{0} \to ρ^{-} ℓ^{+} ν_{ℓ}

$B^0 \to \rho^- \ell^+ \nu_\ell$ in a sample corresponding to 62.8 fb

^{- 1}

$^{-1}$ of Belle II data using hadronic

B

$B$ -tagging via the full-event-interpretation algorithm. [...]
arXiv:2111.00710 ; BELLE2-CONF-PH-2021-013. - 24.
Fulltext

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Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless $B$ decays reconstructed in 2019-2020 Belle II data / Belle-II Collaboration
We report on measurements of branching fractions (

B

$\mathcal{B}$ ) and CP-violating charge asymmetries (

A_{C P}

$\mathcal{A}_{\rm CP}$ ) of multibody charmless

B

$B$ decays reconstructed by the Belle II experiment at the SuperKEKB electron-positron collider. [...]
arXiv:2109.10807 ; BELLE2-CONF-PH-2021-002. - 28.
Fulltext

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Study of $\chi_{bJ}(nP) \rightarrow \omega \Upsilon(1S)$ at Belle / Belle Collaboration
We report results from a study of hadronic transitions of the

χ_{b J} (n P)

$\chi_{bJ}(nP)$ states of bottomonium at Belle. [...]
arXiv:2108.03497 ; BELLE-CONF-2102. - 12.
Fulltext

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Search for a light Higgs boson in single-photon decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ tagging method / Belle Collaboration
We search for a light Higgs boson (

A^{0}

$A^0$ ) decaying into a

τ^{+} τ^{-}

$\tau^+\tau^-$ or

μ^{+} μ^{-}

$\mu^+\mu^-$ pair in the radiative decays of

Υ (1 S)

$\Upsilon(1S)$ . The production of

Υ (1 S)

$\Upsilon(1S)$ mesons is tagged by

Υ (2 S) \to π^{+} π^{-} Υ (1 S)

$\Upsilon(2S)\to \pi^+ \pi^- \Upsilon(1S)$ transitions, using 158 million

Υ (2 S)

$\Upsilon(2S)$ events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. [...]
arXiv:2112.11852; Belle Preprint 2021-30; KEK Preprint 2021-35.- 2022-02-23 - 9 p. - Published in : Phys. Rev. Lett. 128 (2022) 081804 Fulltext: PDF;

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The Belle II Physics Book / Belle-II Collaboration
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB e+e- collider. Belle II collected its first collisions in 2018, and is expected to operate for the next decade. [...]
arXiv:1808.10567; KEK Preprint 2018-27; BELLE2-PUB-PH-2018-001; FERMILAB-PUB-18-398-T; JLAB-THY-18-2780; INT-PUB-18-047; UWThPh 2018-26.- 2019-12-23 - 654 p. - Published in : PTEP: 2019 (2019) , no. 12, pp. 123C01
- Published in : PTEP: 2020 (2020) , no. 2, pp. 029201 Article from SCOAP3: PDF; Fulltext: 1808.10567 - PDF; Erratum - PDF; fermilab-pub-18-398-t - PDF; Fulltext from publisher: PDF; External link: Fermilab Library Server (fulltext available)

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Measurement of Michel Parameters ( $\bar\eta$ , $\xi\kappa$ ) in the radiative leptonic decay of tau at Belle / Belle Collaboration
We present the first measurement of the Michel parameters

¯ η

$\bar{\eta}$ and

ξ κ

$\xi\kappa$ in the radiative leptonic decay of the

τ

$\tau$ lepton using 703 f

b^{- 1}

$\mathrm{b}^{-1}$ of data collected with the Belle detector at the KEKB

e^{+} e^{-}

$e^+e^-$ collider. The Michel parameters are measured by an unbinned maximum likelihood fit to the kinematic information of

e^{+} e^{-} \to τ^{+} τ^{-} \to (π^{+} π^{0} ¯ ν) (l^{-} ν ¯ ν γ)

$e^+e^-\rightarrow\tau^+\tau^-\rightarrow (\pi^+\pi^0 \bar{\nu})(l^-\nu\bar{\nu}\gamma)$

(l = e

$(l=e$ or

μ)

$\mu)$ . [...]
arXiv:1609.08280.- 2017-06-22 - 4 p. - Published in : Nucl. Part. Phys. Proc. 287-288 (2017) 11-14 Fulltext: PDF; External link: Preprint
In : The 14th International Workshop on Tau Lepton Physics (Tau2016), Beijing, China, 18 - 23 Sep 2016, pp.11-14

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Angular analysis of $B^0 \to K^\ast(892)^0 \ell^+ \ell^-$ / Belle Collaboration
We present a measurement of angular observables,

$P_4'$ ,

$P_5'$ ,

$P_6'$ ,

$P_8'$ , in the decay

$B^0 \to K^\ast(892)^0 \ell^+ \ell^-$ , where

$\ell^+\ell^-$ is either

$e^+e^-$ or

$\mu^+\mu^-$ . [...]
arXiv:1604.04042 ; BELLE-CONF-1603 ; BELLE-CONF-1603. - 2016 - 13.
Preprint - Full text

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Measurement of the branching ratio of $\bar{B}^0 \rightarrow D^{*+} \tau^- \bar{\nu}_{\tau}$ relative to $\bar{B}^0 \rightarrow D^{*+} \ell^- \bar{\nu}_{\ell}$ decays with a semileptonic tagging method / Belle Collaboration
We report a measurement of ratio

${\cal R}(D^*) = {\cal B}(\bar{B}^0 \rightarrow D^{*+} \tau^- \bar{\nu}_{\tau})/{\cal B}(\bar{B}^0 \rightarrow D^{*+} \ell^- \bar{\nu}_{\ell})$ , where

$\ell$ denotes an electron or a muon. The results are based on a data sample containing

$772\times10^6$

$B\bar{B}$ pairs recorded at the

$\Upsilon(4S)$ resonance with the Belle detector at the KEKB

$e^+ e^-$ collider. [...]
arXiv:1603.06711; BELLE-CONF-1602.- 2019-01 - 12 p. - Published in : Measurement 132 (2019) 369-376 Fulltext: PDF; External link: Preprint
In : 51st Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 12 - 19 Mar 2016, pp.369-376

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10.

Energy scan of the $e^+e^- \to h_b(nP)\pi^+\pi^-$ $(n=1,2)$ cross sections and evidence for the $\Upsilon(11020)$ decays into charged bottomonium-like states / Belle Collaboration
Using data collected with the Belle detector in the energy region of the

$\Upsilon(10860)$ and

$\Upsilon(11020)$ resonances we measure the

$e^+e^- \to h_b(nP)\pi^+\pi^-$

$(n=1,2)$ cross sections. Their energy dependences show clear

$\Upsilon(10860)$ and

$\Upsilon(11020)$ peaks with a small or no non-resonant contribution. [...]
arXiv:1508.06562; BELLE-CONF-1503; BELLE-CONF-1503.- 2016-09-28 - 7 p. - Published in : Phys. Rev. Lett. 117 (2016) 142001 APS Open Access article: PDF; Fulltext: PDF; External link: Rivet analyses reference

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Смотрите также: похожие имена автора
12	Sumisawa, K.
1	Sumisawa, Kazutaka

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