W.-S. Hou
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View article: Search for $h_b(2P)\toγχ_{bJ}(1P)$ at $\sqrt{s} = 10.860$ GeV
Search for $h_b(2P)\toγχ_{bJ}(1P)$ at $\sqrt{s} = 10.860$ GeV Open
In the bottomonium sector, the hindered magnetic dipole (M1) transitions between P-wave states $h_b(2P) \rightarrow χ_{bJ}(1P) γ$, $J=0, \, 1, \, 2$, are expected to be severely suppressed according to the Relativized Quark Model, due to t…
View article: Search for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle
Search for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle Open
A bstract We report a search for the charged-lepton flavor violation in Υ(2 S ) → ℓ ∓ τ ± ( ℓ = e, μ ) decays using a 25 fb − 1 Υ(2 S ) sample collected by the Belle detector at the KEKB e + e − asymmetric-energy collider. We find no evide…
View article: Search for Baryon-Number-Violating Processes in $B^-$ Decays to the $\barΞ_{c}^{0} \barΛ_{c}^{-}$ Final State
Search for Baryon-Number-Violating Processes in $B^-$ Decays to the $\barΞ_{c}^{0} \barΛ_{c}^{-}$ Final State Open
We report the results of the first search for $B^-$ decays to the $\barΞ_{c}^{0} \barΛ_{c}^{-}$ final state using 711~${\rm fb^{-1}}$ of data collected at the $Υ(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-…
View article: Search for baryon and lepton number violating decays $\boldsymbol{D \rightarrow p\ell}$
Search for baryon and lepton number violating decays $\boldsymbol{D \rightarrow p\ell}$ Open
We search for the baryon and lepton number violating charm decays, $D \rightarrow p\ell$, where $D$ is either a $D^0$ or a $\overline{D}^0$ and $\ell$ is a muon or an electron, using a data sample of $921\,\mathrm{fb}^{-1}$ collected by th…
View article: Observation of a new structure near 10.75 GeV in the energy dependence of the e<sup>+</sup>e<sup>–</sup>→ Υ(nS)π<sup>+</sup>π<sup>–</sup> (n = 1, 2, 3) cross sections
Observation of a new structure near 10.75 GeV in the energy dependence of the e<sup>+</sup>e<sup>–</sup>→ Υ(nS)π<sup>+</sup>π<sup>–</sup> (n = 1, 2, 3) cross sections Open
We report a new measurement of the e+e– → Υ(nS)π+π– (n = 1, 2, 3) cross sections at energies from 10.52 to 11.02 GeV using data collected with the Belle detector at the KEKB asymmetric-energy e+e– collider. We observe a new structure in th…
View article: Search for charged lepton flavor violating decays of $\\Upsilon(1S)$
Search for charged lepton flavor violating decays of $\\Upsilon(1S)$ Open
We present a search for the charged lepton-flavor-violating decays\n$\\Upsilon(1S)\\rightarrow\\ell\\ell^\\prime$ and radiative charged\nlepton-flavour-violating decays $\\Upsilon(1S)\\rightarrow\\gamma\\ell\\ell^\\prime$\n[$\\ell,\\ell^\\…
View article: Search for a light Higgs boson in single-photon decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ tagging method
Search for a light Higgs boson in single-photon decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ tagging method Open
We search for a light Higgs boson ($A^0$) decaying into a $\tau^+\tau^-$ or $\mu^+\mu^-$ pair in the radiative decays of $\Upsilon(1S)$. The production of $\Upsilon(1S)$ mesons is tagged by $\Upsilon(2S)\to \pi^+ \pi^- \Upsilon(1S)$ transi…
View article: An improved search for the electric dipole moment of the $\tau$ lepton
An improved search for the electric dipole moment of the $\tau$ lepton Open
We report a measurement of the electric dipole moment of the $τ$ lepton $(d_{τ})$ using an 833 fb$^{−1}$ data sample collected near the $Υ(4S)$ resonance, with the Belle detector at the KEKB asymmetric-energy e$^{+}$e$^{−}$ collider. Using…
View article: Search for the decay $B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}$ at the Belle experiment
Search for the decay $B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}$ at the Belle experiment Open
This letter presents a search for the rare flavor-changing neutral current process $B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}$ using data taken with the Belle detector at the KEKB asymmetric energy $e^{+}e^{-}$ collider. The analysis is …
View article: Study of $\overline{B}{}^0\rightarrow D^{+}h^{-} (h=K/\pi)$ decays at Belle
Study of $\overline{B}{}^0\rightarrow D^{+}h^{-} (h=K/\pi)$ decays at Belle Open
We present a measurement of the branching fractions of the Cabibbo favored $\overline{B}{}^0\rightarrow D^{+}\pi^{-}$ and the Cabibbo suppressed $\overline{B}{}^0\rightarrow D^{+}K^{-}$ decays. We find $\mathcal{B}(\overline{B}{}^0\rightar…
View article: First search for the η$_{c2}$(1D) in B decays at Belle
First search for the η$_{c2}$(1D) in B decays at Belle Open
The first dedicated search for the ηc2(1D) is carried out using the decays B$^{+}$→ η$_{c2}$(1D)K$^{+}$, B$^{0}$ → η$_{c2}$(1D)K0¦S, B$^{0}$→ η$_{c2}$(1D)π$^{-}$K$^{+}$, and B$^{+}$→ η$_{c2}$(1D)π$^{+}$K0¦S with η$_{c2}$(1D) → h$_{c}$γ. No…
View article: Inclusive study of bottomonium production in association with an $η$ meson in $e^+e^-$ annihilations near $Υ(5S)$
Inclusive study of bottomonium production in association with an $η$ meson in $e^+e^-$ annihilations near $Υ(5S)$ Open
We study bottomonium production in association with an $η$ meson in $e^+e^-$ annihilations near the $Υ(5S)$, at a center of mass energy of $\sqrt{s}=10.866\,$GeV. The results are based on the $121.4\,$fb$^{-1}$ data sample collected by the…
View article: Inclusive study of bottomonium production in association with an $\eta$ meson in $e^+e^-$ annihilations near $\Upsilon(5S)$
Inclusive study of bottomonium production in association with an $\eta$ meson in $e^+e^-$ annihilations near $\Upsilon(5S)$ Open
We study bottomonium production in association with an $\eta$ meson in $e^+e^-$ annihilations near the $\Upsilon(5S)$, at a center of mass energy of $\sqrt{s}=10.866\,$GeV. The results are based on the $121.4\,$fb$^{-1}$ data sample collec…
View article: Search for $\Lambda_c^+\to\phi p \pi^0$ and measurement of $\Lambda_c^+\to K^-\pi^+ p \pi^0$ decays
Search for $\Lambda_c^+\to\phi p \pi^0$ and measurement of $\Lambda_c^+\to K^-\pi^+ p \pi^0$ decays Open
We have searched for the Cabibbo-suppressed decay $\Lambda_c^+\to\phi p\pi^0$ in $e^+e^-$ collisions using a data sample corresponding to an integrated luminosity of 915 $\rm fb^{-1}$. The data were collected by the Belle experiment at the…
View article: Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$
Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$ Open
We present a measurement of angular observables and a test of lepton flavor universality in the $B\to K^\ast \ell^+\ell^-$ decay, where $\ell$ is either $e$ or $μ$. The analysis is performed on a data sample corresponding to an integrated …
View article: Study of Two-Body $e^+e^- \to B_s^{(*)}\bar{B}_s^{(*)}$ Production in the Energy Range from 10.77 to 11.02 GeV
Study of Two-Body $e^+e^- \to B_s^{(*)}\bar{B}_s^{(*)}$ Production in the Energy Range from 10.77 to 11.02 GeV Open
We report results on the studies of the $e^+e^-\to B_s^{(*)}\bar{B}_s^{(*)}$ processes. The results are based on a $121.4$ fb$^{-1}$ data sample collected with the Belle detector at the center-of-mass energy near the $Υ(10860)$ peak and $1…
View article: Measurement of $CP$ asymmetry in the $D^{0} \to K^0_S K^0_S$ decay at Belle
Measurement of $CP$ asymmetry in the $D^{0} \to K^0_S K^0_S$ decay at Belle Open
We report a measurement of the time-integrated $CP$ asymmetry in the neutral charm meson decay $D^0 \to K^0_S K^0_S$ using 921~fb$^{-1}$ data collected at the $Υ(4S)$ and $Υ(5S)$ resonances with the Belle detector at the KEKB asymmetric-en…
View article: Evidence for the decay $B^{0}\to \eta \eta$
Evidence for the decay $B^{0}\to \eta \eta$ Open
We report a search for $B^{0}\\to \\eta \\eta $ with a data sample corresponding\nto an integrated luminosity of $698 \\,{\\rm fb}^{-1}$ containing $753 \\times\n10^{6}$ $B\\bar{B}$ pairs collected at the $\\Upsilon(4S)$ resonance with the…
View article: Studies of charmed strange baryons in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>D</mml:mi></mml:math>final state at Belle
Studies of charmed strange baryons in thefinal state at Belle Open
We report the discovery of Xi(c)(3055)(0), observed by its decay into the final-state Lambda D-0, and present the first observation and evidence of the decays of Xi(c)(3055)(+) and Xi(c)(3080)(+) into Lambda D+. We also perform a combined …
View article: First model-independent Dalitz analysis of B⁰ -> DK*⁰, D -> K⁰Sπ⁺π⁻ decay
First model-independent Dalitz analysis of B⁰ -> DK*⁰, D -> K⁰Sπ⁺π⁻ decay Open
We report a measurement of the amplitude ratio $r_S$ of $B^0 \to D^0K^{\ast 0}$ and $B^0 \to \bar {D^0}K^{\ast 0}$ decays with a Dalitz analysis of $D\to K_S^0\pi ^+\pi ^-$ decays, for the first time using a model-independent method. We se…
View article: Measurement of Azimuthal Modulations in the Cross-Section of Di-Pion Pairs in Di-Jet Production from Electron-Positron Annihilation
Measurement of Azimuthal Modulations in the Cross-Section of Di-Pion Pairs in Di-Jet Production from Electron-Positron Annihilation Open
We present an extraction of azimuthal correlations between two pairs of charged pions detected in opposite jets from electron-positron annihilation. These correlations may arise from the dependence of the di-pion fragmentation on the polar…