E. De La Cruz–Burelo
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View article: Search for an axion-like particle in B → K(*)a(→ γγ) decays at Belle
Search for an axion-like particle in B → K(*)a(→ γγ) decays at Belle Open
A bstract We report a search for an axion-like particle a in B → K (*) a decays using data collected with the Belle detector at the KEKB asymmetric-energy electron-positron collider. The search is based on a 711 fb − 1 data sample collecte…
View article: Model-agnostic likelihood for the reinterpretation of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:msup> <mml:mrow> <mml:mi>B</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>+</mml:mo> </mml:mrow> </mml:msup> <mml:mo stretchy="false">→</mml:mo> <mml:msup> <mml:mrow> <mml:mi>K</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>+</mml:mo> </mml:mrow> </mml:msup> <mml:mi>v</mml:mi> <mml:mover accent="true"> <mml:mrow> <mml:mi>v</mml:mi> </mml:mrow> <mml:mrow> <mml:mo stretchy="false">¯</mml:mo> </mml:mrow> </mml:mover> </mml:mrow> </mml:math> measurement at Belle II
Model-agnostic likelihood for the reinterpretation of the measurement at Belle II Open
We recently measured the branching fraction of the B + → K + ν ν ¯ decay using 362 fb − 1 of on-resonance e + e − collision data under the assumption of Standard Model kinematics, providing the first evidence fo…
View article: Charged-hadron identification at Belle II
Charged-hadron identification at Belle II Open
The Belle II experiment’s ability to identify particles critically affects the sensitivity of its measurements. We describe Belle II’s algorithms for identifying charged particles and evaluate their performance in separating pions, kaons, …
Measurement of the branching fraction and search for and decays at Belle Open
We present a study of the rare charm meson decays D 0 → K + K − e + e − , π + π − e + e − , and K − π + e + e − using a 942 fb − 1 dataset collected by the Belle detector at the KEKB asymmetric-e…
View article: Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment
Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment Open
Inelastic dark matter models that have two dark matter particles and a massive dark photon can reproduce the observed relic dark matter density without violating cosmological limits. The mass splitting between the two dark matter particles…
View article: Measurement of B → K*(892)γ decays at Belle II
Measurement of B → K*(892)γ decays at Belle II Open
A bstract We present measurements of B → K * (892) γ decays using 365 fb − 1 of data collected from 2019 to 2022 by the Belle II experiment at the SuperKEKB asymmetric-energy e + e − collider. The data sample contains (387 ± 6) × 10 6 Υ(4 …
View article: Search for lepton-flavor-violating $${\tau }^{-}\to {{\ell}}^{-}{K}_{s}^{0}$$ decays at Belle and Belle II
Search for lepton-flavor-violating $${\tau }^{-}\to {{\ell}}^{-}{K}_{s}^{0}$$ decays at Belle and Belle II Open
A bstract We present the results of a search for charged-lepton-flavor violating decays $${\tau }^{-}\to {{\ell}}^{-}{K}_{s}^{0}$$ , where ℓ − is either an electron or a muon. We combine e + e − data samples recorded by the Belle II experi…
View article: Determination of $|V_{cb}|$ using $B\to D\ellν_\ell$ Decays at Belle II
Determination of $|V_{cb}|$ using $B\to D\ellν_\ell$ Decays at Belle II Open
We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cb}|$ from the decay $B\to D\ellν_\ell$ using a $365~\mathrm{fb}^{-1}$ $e^+e^-\toΥ(4S)\to B\bar B$ data sample recorded by the Belle II experiment at the Super…
View article: Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment
Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment Open
Inelastic dark matter models that have two dark matter particles and a massive dark photon can reproduce the observed relic dark matter density without violating cosmological limits. The mass splitting between the two dark matter particles…
View article: Working Toward an Environmental Risk Assessment of Emerging Contaminants in Wastewater: the Case of Amoxicillin
Working Toward an Environmental Risk Assessment of Emerging Contaminants in Wastewater: the Case of Amoxicillin Open
Amoxicillin is considered the most widely used antibiotic and has been cataloged among the drugs under surveillance. In the current work, we aimed to review the detection methods, presence, and concentrations of amoxicillin in wastewater f…
View article: Search for lepton-flavor-violating $τ^- \to \ell^- K_s^0$ decays at Belle and Belle II
Search for lepton-flavor-violating $τ^- \to \ell^- K_s^0$ decays at Belle and Belle II Open
We present the results of a search for charged-lepton-flavor violating decays $τ^{-} \rightarrow \ell^{-}K_{S}^{0}$, where $\ell^{-}$ is either an electron or a muon. We combine $e^+e^-$ data samples recorded by the Belle II experiment at …
View article: Measurement of the inclusive branching fractions for $${B}_{s}^{0}$$ decays into D mesons via hadronic tagging
Measurement of the inclusive branching fractions for $${B}_{s}^{0}$$ decays into D mesons via hadronic tagging Open
A bstract We report measurements of the absolute branching fractions $$\mathcal{B}\left({B}_{s}^{0}\to {D}_{s}^{\pm }X\right)$$ , $$\mathcal{B}\left({B}_{s}^{0}\to {D}^{0}/{\overline{D} }^{0}X\right)$$ , and $$\mathcal{B}\left({B}_{s}^{0}\…
View article: Search for $B^0 \to K^{\ast 0} τ^+ τ^-$ decays at the Belle II experiment
Search for $B^0 \to K^{\ast 0} τ^+ τ^-$ decays at the Belle II experiment Open
We present a search for the rare flavor-changing neutral-current decay $B^0 \to K^{\ast 0} τ^+ τ^-$ with data collected by the Belle II experiment at the SuperKEKB electron-positron collider. The analysis uses a 365 fb$^{-1}$ data sample r…
View article: Observations of the singly Cabibbo-suppressed decays $$ {\Xi}_c^{+}\to p{K}_S^0 $$, $$ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $$, and $$ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $$ at Belle and Belle II
Observations of the singly Cabibbo-suppressed decays $$ {\Xi}_c^{+}\to p{K}_S^0 $$, $$ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $$, and $$ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $$ at Belle and Belle II Open
A bstract Using data samples of 983.0 fb − 1 and 427.9 fb − 1 accumulated with the Belle and Belle II detectors operating at the KEKB and SuperKEKB asymmetric-energy e + e − colliders, singly Cabibbo-suppressed decays $$ {\Xi}_c^{+}\to p{K…
View article: Search for Pcs(4459) and Pcs(4338) in Upsilon(1S,2S) inclusive decays at Belle
Search for Pcs(4459) and Pcs(4338) in Upsilon(1S,2S) inclusive decays at Belle Open
Using data samples of 102 million Upsilon(1S) events and 158 million Upsilon(2S) events collected by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we search for [udsccbar] pentaquark states decaying to Jpsi Lambda. Us…
View article: Measurement of $B^+\toτ^+ν_τ$ branching fraction with a hadronic tagging method at Belle II
Measurement of $B^+\toτ^+ν_τ$ branching fraction with a hadronic tagging method at Belle II Open
We present a measurement of the branching fraction of $B^+\toτ^+ν_τ$ decays using $(387\pm6)\times 10^6$ $Υ(4S)$ collected between 2019 and 2022 with the Belle II detector at the SuperKEKB $e^+e^-$ collider. We reconstruct the accompanying…
View article: Observations of the singly Cabibbo-suppressed decays $ {\Xi}_c^{+}\to p{K}_S^0 $, $ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $, and $ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $ at Belle and Belle II
Observations of the singly Cabibbo-suppressed decays $ {\Xi}_c^{+}\to p{K}_S^0 $, $ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $, and $ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $ at Belle and Belle II Open
Using data samples of 983.0 fb$^{−1}$ and 427.9 fb$^{−1}$ accumulated with the Belle and Belle II detectors operating at the KEKB and SuperKEKB asymmetric-energy e$^{+}$e$^{−}$ colliders, singly Cabibbo-suppressed decays $ {\Xi}_c^{+}\to p…
View article: Search for the lepton-flavor-violating $τ^{-} \rightarrow e^{\mp} \ell^{\pm} \ell^{\mp}$ decays at Belle II
Search for the lepton-flavor-violating $τ^{-} \rightarrow e^{\mp} \ell^{\pm} \ell^{\mp}$ decays at Belle II Open
We present the result of a search for the charged-lepton-flavor violating decays $τ^- \rightarrow e^\mp \ell^\pm \ell^-$, where $\ell$ is a muon or an electron, using a data sample with an integrated luminosity of 428 fb$^{-1}$ recorded by…
View article: Measurement of time-dependent $CP$ asymmetries in $B^0 \to K_{\rm S}^0 \: π^{+} π^{-} γ$ decays at Belle and Belle II
Measurement of time-dependent $CP$ asymmetries in $B^0 \to K_{\rm S}^0 \: π^{+} π^{-} γ$ decays at Belle and Belle II Open
We present a measurement of the time-dependent $CP$ asymmetry in $B^0 \to K_{\rm S}^0 \: π^{+} π^{-} γ$ decays using a data set of 365 fb$^{-1}$ recorded by the Belle II experiment and the final data set of 711 fb$^{-1}$ recorded by the Be…
View article: Measurement of the $ D^{0}\rightarrow K^{-}π^{+}e^{+}e^{-} $ branching fraction and search for $ D^{0}\rightarrow π^{+}π^{-}e^{+}e^{-} $ and $D^{0}\rightarrow K^{+}K^{-}e^{+}e^{-} $ decays at Belle
Measurement of the $ D^{0}\rightarrow K^{-}π^{+}e^{+}e^{-} $ branching fraction and search for $ D^{0}\rightarrow π^{+}π^{-}e^{+}e^{-} $ and $D^{0}\rightarrow K^{+}K^{-}e^{+}e^{-} $ decays at Belle Open
We present a study of the rare charm meson decays $ D^{0}\rightarrow K^{+}K^{-}e^{+}e^{-} $, $ π^{+}π^{-}e^{+}e^{-} $, and $ K^{-}π^{+}e^{+}e^{-} $ using a 942 fb$^{-1}$ data set collected by the Belle detector at the KEKB asymmetric-energ…
View article: Measurement of $B \to K{}^{*}(892)\gamma$ decays at Belle II
Measurement of $B \to K{}^{*}(892)\gamma$ decays at Belle II Open
We present measurements of $B \to K{}^{*}(892)\gamma$ decays using $365\,{\rm fb}^{-1}$ of data collected from 2019 to 2022 by the Belle~II experiment at the SuperKEKB asymmetric-energy $e^+e^-$ collider. The data sample contains $(387 \pm…
View article: Measurement of the branching fraction, polarization, and time-dependent $CP$ asymmetry in $B^0 \to ρ^+ρ^-$ decays and constraint on the CKM angle $ϕ_2$
Measurement of the branching fraction, polarization, and time-dependent $CP$ asymmetry in $B^0 \to ρ^+ρ^-$ decays and constraint on the CKM angle $ϕ_2$ Open
We present a measurement of the branching fraction and fraction of longitudinal polarization of $B^0 \to ρ^+ ρ^-$ decays, which have two $π^0$'s in the final state. We also measure time-dependent {\it CP} violation parameters for decays in…
View article: Search for lepton flavor-violating decay modes $B^0\to K_S^0τ^\pm\ell^\mp~(\ell=μ, e)$ with hadronic $B$-tagging at Belle and Belle II
Search for lepton flavor-violating decay modes $B^0\to K_S^0τ^\pm\ell^\mp~(\ell=μ, e)$ with hadronic $B$-tagging at Belle and Belle II Open
We present the first search for the lepton flavor-violating decay modes $B^0 \rightarrow K_S^0 τ^\pm \ell^\mp~(\ell=μ, e)$ using the 711 fb$^{-1}$ and 365 fb$^{-1}$ data samples recorded by the Belle and Belle II detectors, respectively. W…
View article: Test of light-lepton universality in <em>τ</em> decays with the Belle II experiment
Test of light-lepton universality in <em>τ</em> decays with the Belle II experiment Open
We present a measurement of the ratio Rµ = $\\mathcal{B}$($τ^- → µ^-\\overline{ν}_µν_τ$)/$\\mathcal{B}(τ^- → e^-\\overline{ν}_eν_τ$) of branching fractions B of the τ lepton decaying to muons or electrons using data collected with the Bell…
View article: Up and down quark structure of the proton
Up and down quark structure of the proton Open
We report an improved measurement of the valence u and d quark distributions from the forward-backward asymmetry in the Drell-Yan process using 8.6 fb−1 of data collected with the D0 detector in pp¯ collisions at s=1.96. This analysis pro…
View article: Measurement of the time-integrated CP asymmetry in $D^{0}\rightarrow K^{0}_{S}K^{0}_{S}$ decays using Belle and Belle II data
Measurement of the time-integrated CP asymmetry in $D^{0}\rightarrow K^{0}_{S}K^{0}_{S}$ decays using Belle and Belle II data Open
We measure the time-integrated CP asymmetry in $D^{0} \rightarrow K^{0}_{S}K^{0}_{S}$ decays reconstructed in $e^{+}e^{-} \rightarrow c\overline{c}$ events collected by the Belle and Belle II experiments. The corresponding data samples hav…
View article: Determination of the CKM angle ϕ3 from a combination of Belle and Belle II results
Determination of the CKM angle ϕ3 from a combination of Belle and Belle II results Open
A bstract We report a determination of the CKM angle ϕ 3 , also known as γ , from a combination of measurements using samples of up to 711 fb − 1 from the Belle experiment and up to 362 fb − 1 from the Belle II experiment. We combine resul…