W. Shan

activity

20222026

C P

violation and measurement of branching fractions and decay asymmetry parameters for

Λ_{c}^{+} \to Λ h^{+}

and

Λ_{c}^{+} \to Σ^{0} h^{+}

(

h = K, π

)

20 citations · 154 across the 32 of their papers we have counts for

collaborators

32 papers

hep-ex2026

Searches for charged-lepton-flavor violation in $χ_{b J} (1 P)$ decays

Belle, Belle II Collaborations, : +415

We report the first searches for charged-lepton-flavor violation in decays of $χ_{b J} (1 P)$ ( $J = 0, 1,$ and $2$ ) to a pair of charged leptons using 158 million $Υ (2 S)$ decays collect…

hep-ex2025

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we study the semileptonic decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ for the first time at an electron-…

hep-ex2025

Measurement of the $C P$ asymmetry in $D^{0} \to π^{+} π^{-} π^{0}$ decays at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +400

We measure the time- and phase-space-integrated $C P$ asymmetry $A_{C P}$ in $D^{0} \to π^{+} π^{-} π^{0}$ decays reconstructed in $e^{+} e^{-} \to c c ˉ$ events collected by the Belle II experiment…

hep-ex2025

Measurement of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays at Belle and Belle II

Belle, Belle II Collaborations, : +350

We present a measurement of the time-dependent $C P$ asymmetry in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays using a data set of 365 fb $^{- 1}$ recorded by the Belle II experiment…

hep-ex2025

Model-agnostic likelihood for the reinterpretation of the $B^{+} \to K^{+} ν ν ˉ$ measurement at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +374

We recently measured the branching fraction of the $B^{+} \to K^{+} ν ν ˉ$ decay using 362fb $^{- 1}$ of on-resonance $e^{+} e^{-}$ collision data under the assumption of Standard…

hep-ex2025

Determination of $∣ V_{c b} ∣$ using $B \to D ℓ ν_{ℓ}$ Decays at Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +407

We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element $∣ V_{c b} ∣$ from the decay $B \to D ℓ ν_{ℓ}$ using a $365 fb^{- 1}$ $e^{+} e^{-} \to Υ (4 S) \to B B ˉ$ d…

hep-ex2025★ 1 cited

Measurement of the time-integrated $C P$ asymmetry in $D^{0} \to π^{0} π^{0}$ decays at Belle II

Belle II Collaboration, I. Adachi, Y. Ahn +372

We measure the time-integrated $C P$ asymmetry, $A_{C P}$ , in $D^{0} \to π^{0} π^{0}$ decays reconstructed in $e^{+} e^{-} \to c c ˉ$ events collected by Belle II during 2019--2022. The data cor…

hep-ex2025★ 1 cited

Measurement of the time-integrated $C P$ asymmetry in $D^{0} \to K_{S}^{0} K_{S}^{0}$ decays using opposite-side flavor tagging at Belle and Belle II

Belle, Belle II Collaborations, : +378

We measure the time-integrated $C P$ asymmetry in $D^{0} \to K_{S}^{0} K_{S}^{0}$ decays reconstructed in $e^{+} e^{-} \to c c$ events collected by the Belle and Belle II exp…

hep-ex2025

Observation of the decay $ψ (3686) \to Σ^{0} Σ ˉ^{0} ω$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using a dataset of $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of the decay $…

hep-ex2025

Measurements of the branching fractions of $Ξ_{c}^{+} \to Σ^{+} K_{S}^{0}$ , $Ξ_{c}^{+} \to Ξ^{0} π^{+}$ , and $Ξ_{c}^{+} \to Ξ^{0} K^{+}$ at Belle and Belle II

Belle, Belle II Collaborations, : +357

Using 983.0 $fb^{- 1}$ and 427.9 $fb^{- 1}$ data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy $e^{+} e^{-}$ colliders, res…

hep-ex2024★ 5 cited

Observations of the singly Cabibbo-suppressed decays $Ξ_{c}^{+} \to p K_{S}^{0}$ , $Ξ_{c}^{+} \to Λ π^{+}$ , and $Ξ_{c}^{+} \to Σ^{0} π^{+}$ at Belle and Belle II

Belle, Belle II Collaborations, : +345

Using data samples of 983.0~ $f b^{- 1}$ and 427.9~ $f b^{- 1}$ accumulated with the Belle and Belle~II detectors operating at the KEKB and SuperKEKB asymmetric-energy $e^{+} e^{-}$ c…

hep-ex2024★ 2 cited

Observation of the decay $B^{0} \to J / ψ ω$ at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +383

We measure the branching fraction of the decay $B^{0} \to J / ψ ω$ using data collected with the Belle II detector at the SuperKEKB collider. The data contain $(387 \pm 6) \times 1 0^{6}$ …

hep-ex2024★ 10 cited

Improved measurements of $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ and $D^{+} \to K ˉ^{0} ℓ^{+} ν_{ℓ}$

BESIII Collaboration

Using 7.93 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the absolute branching fractions of $D^0\to…

hep-ex2024★ 2 cited

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +436

We report measurements of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays based on a data sample of $(388 \pm 6) \times 1 0^{6}$ $B B ˉ$ events collected at the $Υ (4 S)$ …

hep-ex2024★ 2 cited

Measurement of the branching fractions of $B ˉ \to D^{()} K^{-} K_{(S)}^{() 0}$ and $B ˉ \to D^{(*)} D_{s}^{-}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +404

We present measurements of the branching fractions of eight $B^{0} \to D^{(*) +} K^{-} K_{(S)}^{(*) 0}$ , $B^{-} \to D^{(*) 0} K^{-} K_{(S)}^{(*) 0}$ decay channels. The results are…

hep-ex2024★ 4 cited

Search for the decay $B^{0} \to γ γ$ using Belle and Belle II data

Belle, Belle II Collaborations, : +407

We report the result of a search for the rare decay $B^{0} \to γ γ$ using a combined dataset of $753 \times 1 0^{6}$ $B B ˉ$ pairs collected by the Belle experiment and $387\times10…

hep-ex2024★ 8 cited

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} π^{0}$ cross section in the energy range 0.62-3.50 GeV at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +360

We report a measurement of the $e^{+} e^{-} \to π^{+} π^{-} π^{0}$ cross section in the energy range from 0.62 to 3.50 GeV using an initial-state radiation technique. We use an $e^{+} e^{-}$ data sa…

hep-ex2024★ 2 cited

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to η ψ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same data…

hep-ex2024

Measurement of $C P$ asymmetries in $B^{0} \to η^{'} K_{s}^{0}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +399

We describe a measurement of charge-parity ( $C P$ ) violation asymmetries in $B^{0} \to η^{'} K_{S}^{0}$ decays using Belle II data. We consider $η^{'} \to η (\to γ γ) π^{+} π^{-}$ and $η^{'} \to ρ (\to π^{+} π^{-}) γ$ de…

hep-ex2023

Search for the decay $B_{s}^{0} \to J / ψ π^{0}$ at Belle experiment

Belle Collaboration, D. Kumar, B. Bhuyan +164

We have analyzed 121.4 fb $^{- 1}$ of data collected at the $Υ (5 S)$ resonance by the Belle experiment using the KEKB asymmetric-energy $e^{+} e^{-}$ collider to search for the decay $B_s^…

hep-ex2023★ 10 cited

First Measurement of $R (X_{τ / ℓ})$ as an Inclusive Test of the $b \to c τ ν$ Anomaly

Belle II Collaboration, I. Adachi, K. Adamczyk +390

We measure the tau-to-light-lepton ratio of inclusive $B$ -meson branching fractions $R (X_{τ / ℓ}) \equiv B (B \to X τ ν) / B (B \to X ℓ ν)$ , where $ℓ$ indicate…

hep-ex2023★ 20 cited

Determination of $∣ V_{c b} ∣$ using $B^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ}$ decays with Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +416

We determine the CKM matrix-element magnitude $∣ V_{c b} ∣$ using $B^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ}$ decays reconstructed in $189 fb^{- 1}$ of collision data collec…

hep-ex2023★ 2 cited

Measurement of $C P$ asymmetries in $B^{0} \to ϕ K_{S}^{0}$ decays with Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +432

We present a measurement of time-dependent rate asymmetries in $B^{0} \to ϕ K_{S}^{0}$ decays to search for non-standard-model physics in $b \to q q s$ transitions. The data sampl…

hep-ex2023★ 4 cited

Measurement of the $e^{+} e^{-} \to B_{s}^{0} B ˉ_{s}^{0} X$ cross section in the energy range from $10.63$ to $11.02$ GeV using inclusive $D_{s}^{\pm}$ and $D^{0}$ production

Belle Collaboration, V. Zhukova, R. Mizuk +188

We report the first measurement of the inclusive $e^{+} e^{-} \to b b ˉ \to D_{s}^{\pm} X$ and $e^{+} e^{-} \to b b ˉ \to D^{0} / D ˉ^{0} X$ cross sections in the energy range from $10.63$ t…

Searches for charged-lepton-flavor violation in χbJ​(1P) decays

Measurements of the Absolute Branching Fraction of the Semileptonic Decay Ξ−→Λe−νˉe​ and the Axial Charge of the Ξ−

Measurement of the CP asymmetry in D0→π+π−π0 decays at Belle II

Measurement of time-dependent CP asymmetries in B0→KS0​π+π−γ decays at Belle and Belle II

Model-agnostic likelihood for the reinterpretation of the B+→K+ννˉ measurement at Belle II

Determination of ∣Vcb​∣ using B→Dℓνℓ​ Decays at Belle II

Measurement of the time-integrated CP asymmetry in D0→π0π0 decays at Belle II

Measurement of the time-integrated CP asymmetry in D0→KS0​KS0​ decays using opposite-side flavor tagging at Belle and Belle II

Observation of the decay ψ(3686)→Σ0Σˉ0ω

Measurements of the branching fractions of Ξc+​→Σ+KS0​, Ξc+​→Ξ0π+, and Ξc+​→Ξ0K+ at Belle and Belle II

Observations of the singly Cabibbo-suppressed decays Ξc+​→pKS0​, Ξc+​→Λπ+, and Ξc+​→Σ0π+ at Belle and Belle II

Observation of the decay B0→J/ψω at Belle II

Improved measurements of D0→K−ℓ+νℓ​ and D+→Kˉ0ℓ+νℓ​

Measurement of CP asymmetries in B0→KS0​π0γ decays at Belle II

Measurement of the branching fractions of Bˉ→D(∗)K−K(S)(∗)0​ and Bˉ→D(∗)Ds−​ decays at Belle II

Search for the decay B0→γγ using Belle and Belle II data

Measurement of the e+e−→π+π−π0 cross section in the energy range 0.62-3.50 GeV at Belle II

Cross section measurement of e+e−→ηψ(2S) and search for e+e−→ηX~(3872)

Measurement of CP asymmetries in B0→η′Ks0​ decays at Belle II

Search for the decay Bs0​→J/ψπ0 at Belle experiment

First Measurement of R(Xτ/ℓ​) as an Inclusive Test of the b→cτν Anomaly

Determination of ∣Vcb​∣ using B0→D∗+ℓ−νˉℓ​ decays with Belle II

Measurement of CP asymmetries in B0→ϕKS0​ decays with Belle II

Measurement of the e+e−→Bs0​Bˉs0​X cross section in the energy range from 10.63 to 11.02 GeV using inclusive Ds±​ and D0 production

Searches for charged-lepton-flavor violation in $χ_{b J} (1 P)$ decays

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

Measurement of the $C P$ asymmetry in $D^{0} \to π^{+} π^{-} π^{0}$ decays at Belle II

Measurement of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays at Belle and Belle II

Model-agnostic likelihood for the reinterpretation of the $B^{+} \to K^{+} ν ν ˉ$ measurement at Belle II

Determination of $∣ V_{c b} ∣$ using $B \to D ℓ ν_{ℓ}$ Decays at Belle II

Measurement of the time-integrated $C P$ asymmetry in $D^{0} \to π^{0} π^{0}$ decays at Belle II

Measurement of the time-integrated $C P$ asymmetry in $D^{0} \to K_{S}^{0} K_{S}^{0}$ decays using opposite-side flavor tagging at Belle and Belle II

Observation of the decay $ψ (3686) \to Σ^{0} Σ ˉ^{0} ω$

Measurements of the branching fractions of $Ξ_{c}^{+} \to Σ^{+} K_{S}^{0}$ , $Ξ_{c}^{+} \to Ξ^{0} π^{+}$ , and $Ξ_{c}^{+} \to Ξ^{0} K^{+}$ at Belle and Belle II

Observations of the singly Cabibbo-suppressed decays $Ξ_{c}^{+} \to p K_{S}^{0}$ , $Ξ_{c}^{+} \to Λ π^{+}$ , and $Ξ_{c}^{+} \to Σ^{0} π^{+}$ at Belle and Belle II

Observation of the decay $B^{0} \to J / ψ ω$ at Belle II

Improved measurements of $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ and $D^{+} \to K ˉ^{0} ℓ^{+} ν_{ℓ}$

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays at Belle II

Measurement of the branching fractions of $B ˉ \to D^{()} K^{-} K_{(S)}^{() 0}$ and $B ˉ \to D^{(*)} D_{s}^{-}$ decays at Belle II

Search for the decay $B^{0} \to γ γ$ using Belle and Belle II data

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} π^{0}$ cross section in the energy range 0.62-3.50 GeV at Belle II

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

Measurement of $C P$ asymmetries in $B^{0} \to η^{'} K_{s}^{0}$ decays at Belle II

Search for the decay $B_{s}^{0} \to J / ψ π^{0}$ at Belle experiment

First Measurement of $R (X_{τ / ℓ})$ as an Inclusive Test of the $b \to c τ ν$ Anomaly

Determination of $∣ V_{c b} ∣$ using $B^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ}$ decays with Belle II

Measurement of $C P$ asymmetries in $B^{0} \to ϕ K_{S}^{0}$ decays with Belle II

Measurement of the $e^{+} e^{-} \to B_{s}^{0} B ˉ_{s}^{0} X$ cross section in the energy range from $10.63$ to $11.02$ GeV using inclusive $D_{s}^{\pm}$ and $D^{0}$ production