Y. Guan

activity

20112024

most citedThe Belle II Physics Book

570 citations · 3.5k across the 139 of their papers we have counts for

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22 papers · 1 filter

hep-ex2022★ 15 cited

Search for the lepton flavour violating decays $B^{+} \to K^{+} τ^{\pm} ℓ^{\mp}$ ( $ℓ = e, μ$ ) at Belle

Belle Collaboration, S. Watanuki, G. de Marino +176

We present a search for the lepton-flavour-violating decays $B^{+} \to K^{+} τ^{\pm} ℓ^{\mp}$ , with $ℓ = (e, μ)$ , using the full data sample of $772 \times 1 0^{6}$ $B B$ pair…

hep-ex2022★ 3 cited

Determination of $∣ V_{u b} ∣$ from untagged $B^{0} \to π^{-} ℓ^{+} ν_{ℓ}$ decays using 2019-2021 Belle II data

Belle II Collaboration, K. Adamczyk, L. Aggarwal +588

We present an analysis of the charmless semileptonic decay $B^{0} \to π^{-} ℓ^{+} ν_{ℓ}$ , where $ℓ = e, μ$ , from 198.0 million pairs of $B B ˉ$ mesons recorded by the Belle II…

hep-ex2022★ 1 cited

Determination of $∣ V_{c b} ∣$ from $B \to D ℓ ν$ decays using 2019-2021 Belle II data

Belle II collaboration, F. Abudinén, I. Adachi +590

We present a determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element $V_{c b}$ using $B \to D ℓ ν$ decays. The result is based on $e^{+} e^{-} \to Υ (4 S)$ data…

hep-ex2022

Measurement of the photon-energy spectrum in inclusive $B \to X_{s} γ$ decays identified using hadronic decays of the recoil $B$ meson in 2019-2021 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +593

We measure the photon-energy spectrum in radiative bottom-meson ( $B$ ) decays into inclusive final states involving a strange hadron and a photon. We use SuperKEKB electron-positron…

hep-ex2022

Measurement of branching fractions of $Λ_{c}^{+} \to p K_{S}^{0} K_{S}^{0}$ and $Λ_{c}^{+} \to p K_{S}^{0} η$ at Belle

Belle Collaboration, L. K. Li, K. Kinoshita +204

We present a study of a singly Cabibbo-suppressed decay $Λ_{c}^{+} \to p K_{S}^{0} K_{S}^{0}$ and a Cabibbo-favored decay $Λ_{c}^{+} \to p K_{S}^{0} η$ based on 980 $f b^{- 1}$ of data collected by the…

hep-ex2022★ 2 cited

Measurement of Branching Fraction and Longitudinal Polarization in $B^{0} \to ρ^{+} ρ^{-}$ Decays at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +584

We present a measurement of the branching fraction and longitudinal polarization of $B^{0} \to ρ^{+} ρ^{-}$ decays. SuperKEKB electron-positron collision data corresponding to 189~fb$^{-…

hep-ex2022★ 1 cited

Search for rare decays $B^{+} \to D_{s}^{() +} η$ , $D_{s}^{() +} K ˉ^{0}$ , $D^{+} η$ , and $D^{+} K^{0}$

Belle Collaboration, M. Kumar, V. Bhardwaj +196

We present a study of rare decay modes $B^{+} \to D_{s}^{+} h^{0}$ , $B^{+} \to D_{s}^{*+} h^{0}$ , and $B^{+} \to D^{+} h^{0}$ , where $h^{0}$ denotes the neutral mesons $η$ or $K^{0…

hep-ex2022★ 24 cited

Observation of $e^{+} e^{-} \to ω χ_{b J} (1 P)$ and search for $X_{b} \to ω Υ (1 S)$ at $s$ near 10.75 GeV

Belle II collaboration, I. Adachi, L. Aggarwal +348

We study the processes $e^{+} e^{-} \to ω χ_{b J} (1 P)$ ( $J$ = 0, 1, or 2) using samples at center-of-mass energies $s$ = 10.701, 10.745, and 10.805 GeV, corresponding to 1.6, 9.8, an…

hep-ex2022★ 12 cited

Measurement of the $Ω_{c}^{0}$ lifetime at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +353

We report on a measurement of the $Ω_{c}^{0}$ lifetime using $Ω_{c}^{0} \to Ω^{-} π^{+}$ decays reconstructed in $e^{+} e^{-} \to c c ˉ$ data collected by the Belle II experiment and corresponding…

hep-ex2022★ 1 cited

First measurement of the $B^{+} \to π^{+} π^{0} π^{0}$ branching fraction and \textit{CP} asymmetry

Belle Collaboration, Y. -T. Lai, I. Adachi +198

We study $B^{+} \to π^{+} π^{0} π^{0}$ using 711 $fb^{- 1}$ of data collected at the $Υ (4 S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider.…

hep-ex2022

Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in $B \to J / ψ K$ decays at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +591

We report a study of $B \to J / ψ (ℓ^{+} ℓ^{-}) K$ decays, where $ℓ$ represents an electron or a muon, using $e^{+} e^{-}$ collisions at the $Υ (4 S)$ resonance. The data were col…

hep-ex2022★ 2 cited

Angular analysis of $B^{+} \to ρ^{+} ρ^{0}$ decays reconstructed in 2019, 2020, and 2021 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +590

We report on a Belle II measurement of the branching fraction ( $B$ ), longitudinal polarization fraction ( $f_{L}$ ), and CP asymmetry ( $A_{C P}$ ) of $B^{+} \to ρ^{+} ρ^{0}$ …

hep-ex2022

Measurement of the branching fraction of the $B^{0} \to K_{S}^{0} π^{0} γ$ decay using 190 fb $^{- 1}$ of Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +590

We report the measurement of the branching fraction of the $B^{0} \to K_{S}^{0} π^{0} γ$ decay in $e^{+} e^{-} \to Υ (4 S) \to B B$ data recorded by the Belle II experiment at the Sup…

hep-ex2022★ 1 cited

First decay-time-dependent analysis of $B^{0} \to K_{S}^{0} π^{0}$ at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +590

We report measurements of the branching fraction ( $B$ ) and direct $C P$ -violating asymmetry ( $A_{C P}$ ) of the charmless decay $B^{0} \to K^{0} π^{0}$ at Belle II. A sample of…

hep-ex2022★ 22 cited

Evidence of a new excited charmed baryon decaying to $Σ_{c} (2455)^{0, ++} π^{\pm}$

Belle Collaboration, Y. B. Li, C. P. Shen +194

We present the study of $B ˉ^{0} \to Σ_{c} (2455)^{0, ++} π^{\pm} p ˉ$ decays based on $772 \times 1 0^{6}$ $B B ˉ$ events collected with the Belle detector at the KEKB asym…

hep-ex2022★ 1 cited

Study of Exclusive $B \to π e^{+} ν_{e}$ Decays with Hadronic Full-event-interpretation Tagging in 189.3 fb $^{- 1}$ of Belle II Data

Belle II Collaboration, F. Abudinén, I. Adachi +590

We present a reconstruction of the semileptonic decays $B^{0} \to π^{-} e^{+} ν_{e}$ and $B^{+} \to π^{0} e^{+} ν_{e}$ in a sample corresponding to 189.3 fb $^{- 1}$ of Belle II data, using events w…

hep-ex2022★ 4 cited

Measurement of the branching fraction for the decay $B \to K^{*} (892) ℓ^{+} ℓ^{-}$ at Belle II

Belle II Collaboration, F. Abudinén, I. Adachi +590

We report a measurement of the branching fraction of $B \to K^{*} (892) ℓ^{+} ℓ^{-}$ decays, where $ℓ^{+} ℓ^{-} = μ^{+} μ^{-}$ or $e^{+} e^{-}$ , using electron-positron collisions recorde…

physics.acc-ph2022★ 13 cited

Snowmass 2021 White Paper on Upgrading SuperKEKB with a Polarized Electron Beam: Discovery Potential and Proposed Implementation

A. Accardi, D. M. Asner, H. Atmacan +105

Upgrading the SuperKEKB electron-positron collider with polarized electron beams opens a new program of precision physics at a center-of-mass energy of 10.58 GeV. This white paper…

hep-ex2022★ 1 cited

Measurement of the branching fractions for Cabibbo-suppressed decays $D^{+} \to K^{+} K^{-} π^{+} π^{0}$ and $D_{(s)}^{+} \to K^{+} π^{-} π^{+} π^{0}$ at Belle

Belle Collaboration, L. K. Li, A. J. Schwartz +197

We present measurements of the branching fractions for the singly Cabibbo-suppressed decays $D^{+} \to K^{+} K^{-} π^{+} π^{0}$ and $D_{s}^{+} \to K^{+} π^{-} π^{+} π^{0}$ , and the doubly Cabi…

hep-ex2022★ 1 cited

Belle II Executive Summary

D. M. Asner, H. Atmacan, Sw. Banerjee +78

Belle II is a Super $B$ Factory experiment, expected to record 50 ab $^{- 1}$ of $e^{+} e^{-}$ collisions at the SuperKEKB accelerator until 2035. The large samples of $B$ mesons, charm h…

hep-ex2022★ 3 cited

Search for a light Higgs boson in single-photon decays of $Υ (1 S)$ using $Υ (2 S) \to π^{+} π^{-} Υ (1 S)$ tagging method

Belle Collaboration, S. Jia, C. P. Shen +210

We search for a light Higgs boson ( $A^{0}$ ) decaying into a $τ^{+} τ^{-}$ or $μ^{+} μ^{-}$ pair in the radiative decays of $Υ (1 S)$ . The production of $Υ (1 S)$ mesons is tagged by $Υ(2S)\to π^+…

hep-ex2022★ 9 cited

Search for tetraquark states $X_{cc s ˉ s ˉ}$ in $D_{s}^{+} D_{s}^{+} (D_{s}^{+} D_{s}^{+})$ final states at Belle

Belle Collaboration, X. Y. Gao, Y. Li +206

A search for double-heavy tetraquark state candidates $X_{cc s ˉ s ˉ}$ decaying to $D_{s}^{+} D_{s}^{+}$ and $D_{s}^{*+} D_{s}^{*+}$ is presented for the first time using the…

Search for the lepton flavour violating decays B+→K+τ±ℓ∓ (ℓ=e,μ) at Belle

Determination of ∣Vub​∣ from untagged B0→π−ℓ+νℓ​ decays using 2019-2021 Belle II data

Determination of ∣Vcb​∣ from B→Dℓν decays using 2019-2021 Belle II data

Measurement of the photon-energy spectrum in inclusive B→Xs​γ decays identified using hadronic decays of the recoil B meson in 2019-2021 Belle II data

Measurement of branching fractions of Λc+​→pKS0​KS0​ and Λc+​→pKS0​η at Belle

Measurement of Branching Fraction and Longitudinal Polarization in B0→ρ+ρ− Decays at Belle II

Search for rare decays B+→Ds(∗)+​η, Ds(∗)+​Kˉ0, D+η, and D+K0

Observation of e+e−→ωχbJ​(1P) and search for Xb​→ωΥ(1S) at s​ near 10.75 GeV

Measurement of the Ωc0​ lifetime at Belle II

First measurement of the B+→π+π0π0 branching fraction and \textit{CP} asymmetry

Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in B→J/ψK decays at Belle II

Angular analysis of B+→ρ+ρ0 decays reconstructed in 2019, 2020, and 2021 Belle II data

Measurement of the branching fraction of the B0→KS0​π0γ decay using 190 fb−1 of Belle II data

First decay-time-dependent analysis of B0→KS0​π0 at Belle II

Evidence of a new excited charmed baryon decaying to Σc​(2455)0,++π±

Study of Exclusive B→πe+νe​ Decays with Hadronic Full-event-interpretation Tagging in 189.3 fb−1 of Belle II Data

Measurement of the branching fraction for the decay B→K∗(892)ℓ+ℓ− at Belle II

Snowmass 2021 White Paper on Upgrading SuperKEKB with a Polarized Electron Beam: Discovery Potential and Proposed Implementation

Measurement of the branching fractions for Cabibbo-suppressed decays D+→K+K−π+π0 and D(s)+​→K+π−π+π0 at Belle

Belle II Executive Summary

Search for a light Higgs boson in single-photon decays of Υ(1S) using Υ(2S)→π+π−Υ(1S) tagging method

Search for tetraquark states Xccsˉsˉ​ in Ds+​Ds+​ (Ds∗+​Ds∗+​) final states at Belle

Search for the lepton flavour violating decays $B^{+} \to K^{+} τ^{\pm} ℓ^{\mp}$ ( $ℓ = e, μ$ ) at Belle

Determination of $∣ V_{u b} ∣$ from untagged $B^{0} \to π^{-} ℓ^{+} ν_{ℓ}$ decays using 2019-2021 Belle II data

Determination of $∣ V_{c b} ∣$ from $B \to D ℓ ν$ decays using 2019-2021 Belle II data

Measurement of the photon-energy spectrum in inclusive $B \to X_{s} γ$ decays identified using hadronic decays of the recoil $B$ meson in 2019-2021 Belle II data

Measurement of branching fractions of $Λ_{c}^{+} \to p K_{S}^{0} K_{S}^{0}$ and $Λ_{c}^{+} \to p K_{S}^{0} η$ at Belle

Measurement of Branching Fraction and Longitudinal Polarization in $B^{0} \to ρ^{+} ρ^{-}$ Decays at Belle II

Search for rare decays $B^{+} \to D_{s}^{() +} η$ , $D_{s}^{() +} K ˉ^{0}$ , $D^{+} η$ , and $D^{+} K^{0}$

Observation of $e^{+} e^{-} \to ω χ_{b J} (1 P)$ and search for $X_{b} \to ω Υ (1 S)$ at $s$ near 10.75 GeV

Measurement of the $Ω_{c}^{0}$ lifetime at Belle II

First measurement of the $B^{+} \to π^{+} π^{0} π^{0}$ branching fraction and \textit{CP} asymmetry

Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in $B \to J / ψ K$ decays at Belle II

Angular analysis of $B^{+} \to ρ^{+} ρ^{0}$ decays reconstructed in 2019, 2020, and 2021 Belle II data

Measurement of the branching fraction of the $B^{0} \to K_{S}^{0} π^{0} γ$ decay using 190 fb $^{- 1}$ of Belle II data

First decay-time-dependent analysis of $B^{0} \to K_{S}^{0} π^{0}$ at Belle II

Evidence of a new excited charmed baryon decaying to $Σ_{c} (2455)^{0, ++} π^{\pm}$

Study of Exclusive $B \to π e^{+} ν_{e}$ Decays with Hadronic Full-event-interpretation Tagging in 189.3 fb $^{- 1}$ of Belle II Data

Measurement of the branching fraction for the decay $B \to K^{*} (892) ℓ^{+} ℓ^{-}$ at Belle II

Measurement of the branching fractions for Cabibbo-suppressed decays $D^{+} \to K^{+} K^{-} π^{+} π^{0}$ and $D_{(s)}^{+} \to K^{+} π^{-} π^{+} π^{0}$ at Belle

Search for a light Higgs boson in single-photon decays of $Υ (1 S)$ using $Υ (2 S) \to π^{+} π^{-} Υ (1 S)$ tagging method

Search for tetraquark states $X_{cc s ˉ s ˉ}$ in $D_{s}^{+} D_{s}^{+} (D_{s}^{+} D_{s}^{+})$ final states at Belle