Profil bibliographique

D. Matvienko

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

10Publications signalées
0Citations signalées
0Affiliations récentes

Les domaines associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsComputational Physics and Python ApplicationsHigh-Energy Particle Collisions ResearchNeutrino Physics Research

Les publications récentes

Accès ouvert 2026 preprint OpenAlex

Search for the decay $B^+ \rightarrow K^+τ^+τ^-$ using data from the Belle and Belle II experiments

Belle, Belle Collaborations, :, M. Abumusabh et autres

We report a search for the rare decay $B^{+} \rightarrow K^{+} τ^{+} τ^{-}$ using $1.2 \times 10^9$ $Υ(4S)$ mesons produced near threshold in electron-positron collisions and collected by the Belle and Belle~II experiments. We fully reconstruct the hadronic decay of one $B$ …

0 citations arXiv (Cornell University)
2025 article OpenAlex

Observation of the decays $B^{+} \to Σ_{c}(2455)^{++} \overlineΞ_{c}^{-}$ and $B^{0} \to Σ_{c}(2455)^{0} \overlineΞ_{c}^{0}$

Belle II Collaborations, Belle, M. Abumusabh, I. Adachi et autres

We report the first observation of the two-body baryonic decays $B^{+} \to \Sigma_{c}(2455)^{++} \overline{\Xi}_{c}^{-}$ and $B^{0} \to \Sigma_{c}(2455)^{0} \overline{\Xi}_{c}^{0}$ with significances of $7.3\,\sigma$ and $6.2\,\sigma$, respectively, including statistical and systematic uncertainties. The branching fractions are measured to be $\mathcal{B}(B^{+} \to \Sigma_{c}(2455)^{++} \overline{\Xi}_{c}^{-}) …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

Measurement of the Branching Fraction of $\Lambda_c^+ \to p K_S^0 \pi^0$ at Belle

Belle II Collaborations, T. Belle, I. Adachi, L. Aggarwal et autres

We report a precise measurement of the ratio of branching fractions $\mathcal{B}(\Lambda_c^+\to p K_S^0 \pi^0)/\mathcal{B}(\Lambda_c^+\to p K^- \pi^+)$ using 980 fb$^{-1}$ of $e^+e^-$ data from the Belle experiment. We obtain a value of $\mathcal{B}(\Lambda_c^+\to p K_S^0 \pi^0)/\mathcal{B}(\Lambda_c^+\to p K^- \pi^+)=0.339\pm 0.002\pm 0.009$, …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

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 II Collaborations, Belle, I. Adachi, J. Ahn et autres

Using 983.0 $\rm{fb}^{-1}$ and 427.9 $\rm{fb}^{-1}$ data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy $e^+e^-$ colliders, respectively, we present studies of the Cabibbo-favored $\Xi_c^+$ decays ${\Xi_{c}^{+}\to \Sigma^{+}K_{S}^{0}}$ and $\Xi_{c}^{+}\to \Xi^{0}\pi^{+}$, and the singly …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

Search for lepton-flavor-violating $${\tau }^{-}\to {{\ell} }^{-}{K}_{s}^{0}$$ decays at Belle and Belle II

Belle II Collaborations, Belle, I. Adachi, L. Aggarwal et autres

We present the results of a search for charged-lepton-flavor violating decays $\tau^{-} \rightarrow \ell^{-}K_{S}^{0}$, where $\ell^{-}$ is either an electron or a muon. We combine $e^+e^-$ data samples recorded by the Belle II experiment at the SuperKEKB collider (428 fb$^{-1}$) with samples …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

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

Belle II Collaboration, M. Abumusabh, I. Adachi, L. Aggarwal et autres

We recently measured the branching fraction of the $B^{+}\rightarrow K^{+}\nu\bar{\nu}$ decay using 362fb$^{-1}$ of on-resonance $e^+e^-$ collision data under the assumption of Standard Model kinematics, providing the first evidence for this decay. To facilitate future reinterpretations and maximize the scientific impact of …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

Search for an Axion-Like Particle in $B\rightarrow K^{(*)} a (\rightarrowγγ)$ Decays at Belle

Belle II Collaborations, Belle, I. Adachi, L. Aggarwal et autres

We report a search for an axion-like particle $a$ in $B\rightarrow K^{(*)} a (\rightarrow\gamma\gamma)$ decays using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider. The search is based on a $711 \mathrm{fb^{-1}}$ data sample collected at the …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

Search for lepton flavor-violating decay modes $B^0 \to K^{\ast 0}τ^\pm\ell^\mp$ ($\ell = e,μ$) with hadronic B-tagging at Belle and Belle II

Belle II Collaborations, Belle, I. Adachi, Y. Ahn et autres

We present the results of a search for the charged-lepton-flavor violating decays $B^0 \rightarrow K^{*0}\tau^\pm \ell^{\mp}$, where $\ell^{\mp}$ is either an electron or a muon. The results are based on 365 fb$^{-1}$ and 711 fb$^{-1}$ datasets collected with the Belle II and …

0 citations MPG.PuRe (Max Planck Society)
2025 article OpenAlex

Search for the lepton-flavor-violating $\tau^{-} \rightarrow e^{\mp} \ell^{\pm} \ell^{\mp}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed et autres

We present the result of a search for the charged-lepton-flavor violating decays $\tau^- \rightarrow e^\mp \ell^\pm \ell^-$, where $\ell$ is a muon or an electron, using a data sample with an integrated luminosity of 428 fb$^{-1}$ recorded by the Belle II experiment …

0 citations MPG.PuRe (Max Planck Society)
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