Y. B. Chen
A5022064203- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Advanced biosensing and bioanalysis techniques
- Black Holes and Theoretical Physics
- Quantum Computing Algorithms and Architecture
- Medical Imaging Techniques and Applications
- Complexity and Algorithms in Graphs
- Blind Source Separation Techniques
- EEG and Brain-Computer Interfaces
- Atomic and Subatomic Physics Research
- Theoretical and Computational Physics
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Quantum many-body systems
- Nuclear physics research studies
- Gaze Tracking and Assistive Technology
- Optimization and Search Problems
- Astrophysics and Cosmic Phenomena
- Molecular Junctions and Nanostructures
- DNA and Biological Computing
- Advanced Memory and Neural Computing
- Quantum and electron transport phenomena
Institute of High Energy Physics
2015-2025
National Taiwan University
2023-2024
Chang Gung University
2023
National Center for Theoretical Sciences
2023
National Kaohsiung University of Science and Technology
2023
University of Agder
2023
National Central University
2023
University of Perugia
2015
University of Ferrara
2015
Using a data sample collected with the BESIII detector operating at BEPCII storage ring, we observe new neutral state Z_{c}(3900)^{0} significance of 10.4σ. The mass and width are measured to be 3894.8±2.3±3.2 MeV/c^{2} 29.6±8.2±8.2 MeV, respectively, where first error is statistical second systematic. Born cross section for e^{+}e^{-}→π^{0}π^{0}J/ψ fraction it attributable π^{0}Z_{c}(3900)^{0}→π^{0}π^{0}J/ψ in range E_{c.m.}=4.19-4.42 GeV also determined. We interpret this as partner...
Studies are performed of the Cabibbo-favored decay <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msubsup><a:mrow><a:mi mathvariant="normal">Λ</a:mi></a:mrow><a:mrow><a:mi>c</a:mi></a:mrow><a:mrow><a:mo>+</a:mo></a:mrow></a:msubsup><a:mo stretchy="false">→</a:mo><a:mi...
In an analysis of a $2.92\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample taken at 3.773 GeV with the BESIII detector operated BEPCII collider, we measure absolute decay branching fractions $\mathcal{B}({D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{e}^{+}{\ensuremath{\nu}}_{e})=(3.505\ifmmode\pm\else\textpm\fi{}0.014\ifmmode\pm\else\textpm\fi{}0.033)%$ and...
Using a total of 9.0 fb^{-1} e^{+}e^{-} collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for processes e^{+}e^{-}→γX(3872) X(3872)→π^{0}χ_{cJ} J=0, 1, 2. We report first observation X(3872)→π^{0}χ_{c1}, new decay mode X(3872), statistical significance more than 5σ all systematic fit variations. Normalizing to previously established process X(3872)→π^{+}π^{-}J/ψ, find...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo stretchy="false">(</a:mo><a:mn>2.712</a:mn><a:mo>±</a:mo><a:mn>0.014</a:mn><a:mo stretchy="false">)</a:mo><a:mo>×</a:mo><a:msup><a:mrow><a:mn>10</a:mn></a:mrow><a:mrow><a:mn>9</a:mn></a:mrow></a:msup><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi>ψ</a:mi><a:mo stretchy="false">(</a:mo><a:mn>2</a:mn><a:mi>S</a:mi><a:mo stretchy="false">)</a:mo></a:mrow></a:math> events collected with the BESIII detector...
By analyzing <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>7.93</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:msup><a:mi>fb</a:mi><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:math> of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi>e</c:mi><c:mo>+</c:mo></c:msup><c:msup><c:mi>e</c:mi><c:mo>−</c:mo></c:msup></c:math> collision data collected at the center-of-mass energy 3.773 GeV with BESIII detector operated...
Based on a sample of $1.31\ifmmode\times\else\texttimes\fi{}1{0}^{9}\text{ }\text{ }J/\ensuremath{\psi}$ events collected with the BESIII detector, an amplitude analysis isospin-violating decays ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ and ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ is performed. A...
We report the most precise measurements to date of strong-phase parameters between D^{0} and D[over ¯]^{0} decays K_{S,L}^{0}π^{+}π^{-} using a sample 2.93 fb^{-1} e^{+}e^{-} annihilation data collected at center-of-mass energy 3.773 GeV with BESIII detector BEPCII collider. Our results provide key inputs for binned model-independent determination Cabibbo-Kobayashi-Maskawa angle γ/ϕ_{3} B decays. Using our results, decay model sensitivity measurement is expected be 0.7° 1.2°, approximately...
Using 448.1 $\times$ $10^{6}$ $ψ(3686)$ events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make first observation of $ψ(3686)\rightarrowΞ(1530)^{-}\barΞ(1530)^{+}$ and $Ξ(1530)^{-}\barΞ^{+}$ decays statistical significance more than 10$σ$ 5.0$σ$, respectively. The branching fractions are measured be $\cal{B}$$[ψ(3686)\rightarrowΞ(1530)^{-}\barΞ(1530)^{+}] $ = (11.45 $\pm$ 0.40 0.59) $10^{-5}$ $\cal{B}$$[ψ(3686)\rightarrowΞ(1530)^{-}\barΞ^{+}]$...
Using data samples collected at center-of-mass energies $\sqrt{s} = 4.23$, 4.26, and 4.36 GeV with the BESIII detector operating BEPCII storage ring, we search for production of charmoniumlike state $Y(4140)$ through a radiative transition followed by its decay to $\phi J/\psi$. No significant signal is observed upper limits on $\sigma[e^{+} e^{-} \rightarrow \gamma Y(4140)] \cdot \mathcal{B}(Y(4140)\rightarrow \phi J/\psi)$ $90\%$ confidence level are estimated as 0.35, 0.28, 0.33 pb GeV,...
Using ${e}^{+}{e}^{\ensuremath{-}}$ collision data collected with the BESIII detector at BEPCII collider corresponding to an integrated luminosity of $5.2\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ center-of-mass energies ($\sqrt{s}$) from 4.009 4.600 GeV, process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\psi}(3686)$ is studied for first time. The Born cross sections are measured and found be half those reaction...
The decays $\psi_2(3823)\rightarrow\gamma\chi_{c0,1,2}, \pi^+\pi^-J/\psi, \pi^0\pi^0J/\psi, \eta J/\psi$, and $\pi^0J/\psi$ are searched for using the reaction $e^+e^-\rightarrow\pi^+\pi^-\psi_2(3823)$ in a 19 fb$^{-1}$ data sample collected at center-of-mass energies between 4.1 4.7 GeV with BESIII detector. process $\psi_2(3823)\rightarrow\gamma\chi_{c1}$ is observed 9 energy range 4.3 to GeV, which confirms previous observation but higher significance of $11.8\sigma$, evidence...
A search for radiative decays of the P-wave spin singlet charmonium resonance h_{c} is performed based on 4.48×10^{8} ψ^{'} events collected with BESIII detector operating at BEPCII storage ring. Events reaction channels h_{c}→γη^{'} and γη are observed a statistical significance 8.4σ 4.0σ, respectively, first time. The branching fractions h_{c}→γη measured to be B(h_{c}→γη^{'})=(1.52±0.27±0.29)×10^{-3} B(h_{c}→γη)=(4.7±1.5±1.4)×10^{-4}, where errors second systematic uncertainties.
Using $2.93 \rm fb^{-1}$ of $e^+e^-$ collision data collected at a center-of-mass energy 3.773 GeV with the BESIII detector, first observation doubly Cabibbo-suppressed decay $D^+\to K^+\pi^+\pi^-\pi^0$ is reported. After removing decays that contain narrow intermediate resonances, including K^+\eta$, K^+\omega$, and K^+\phi$, branching fraction measured to be $(1.13 \pm 0.08_{\rm stat} 0.03_{\rm syst})\times 10^{-3}$. The ratio fractions over K^-\pi^+\pi^+\pi^0$ found $(1.81\pm0.15)$\%,...
A bstract Using a sample of (10 . 09 ± 0 04) × 10 9 J/ψ decays collected with the BESIII detector, partial wave analyses decay $$ J/\psi \to \gamma {K}_S^0{K}_S^0{\pi}^0 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>J</mml:mi> <mml:mo>/</mml:mo> <mml:mi>ψ</mml:mi> <mml:mo>→</mml:mo> <mml:mi>γ</mml:mi> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> <mml:msup> <mml:mi>π</mml:mi> </mml:msup> </mml:math> are performed within invariant...
Given an undirected, unweighted graph with $n$ vertices and $m$ edges, the maximum cut problem is to find a partition of into disjoint subsets $V_1$ $V_2$ such that number edges between them as large possible. Classically, it NP-complete problem, which has potential applications ranging from circuit layout design, statistical physics, computer vision, machine learning network science clustering. In this paper, we propose quantum algorithm solve for any $G$ quadratic speedup over its...
This paper delves into the spectral theory of compact operators, focusing on eigenvalues that predominantly accumulate at zero and implications for quantum information machine learning. It highlights how spectrum compact, self-adjoint operators plays a crucial role in dimensionality reduction state decomposition. The research bridges abstract operator with practical computational applications, thereby enriching theoretical underpinnings applications theory. study addresses eigenvalue...
Using photon conversions to e+e− pairs, the energy spectrum of inclusive photons from ψ(2S) radiative decays is measured with resolution (σEγ) in range 2.3 3.8 MeV by BESII at Beijing Electron-Positron Collider. The χcJ(1P) states (J=0,1,2) are clearly observed, and their masses spin-averaged χcJ mass determined be Mχc0=3414.21±0.39±0.27, Mχc1=3510.30±0.14±0.16, Mχc2=3555.70±0.59±0.39, M(Pcog3)=3524.85±0.32±0.30 MeV/c2, respectively.Received 6 February...
Using a data sample with an integrated luminosity of 2.93 fb−1 taken at the center-of-mass energy 3.773 GeV, we search for Majorana neutrino (νm) in lepton number violating decays D→Kπe+e+. No significant signal is observed, and upper limits on branching fraction 90% confidence level are set to be B(D0→K−π−e+e+)<2.8×10−6, B(D+→K0Sπ−e+e+)<3.3×10−6 B(D+→K−π0e+e+)<8.5×10−6. The searched different mass assumptions ranging from 0.25 1.0 GeV/c2 D0→K−e+νm,νm→π−e+ D+→K0Se+νm,νm→π−e+, 10−7∼10−6,...
We report a measurement of the branching fraction $\psi(3770)\to\gamma\chi_{c1}$ and search for transition $\psi(3770)\rightarrow \gamma \chi_{c2}$ based on 2.92~fb$^{-1}$ $e^+e^-$ data accumulated at $\sqrt{s}=3.773$~GeV with BESIII detector BEPCII collider. The measured $\psi(3770) \rightarrow \chi_{c1}$ is $\mathcal B(\psi(3770) \chi_{c1})=(2.48 \pm 0.15 0.23) \times 10^{-3}$, which most precise to date. upper limit $90\%$ confidence level \chi_{c2})<0.64 10^{-3}$. corresponding partial...
Given an undirected, unweighted graph with n vertices and m edges, the maximum cut problem is to find a partition of into disjoint subsets V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> such that number edges between them as large possible. Classically, it NP-complete problem, which has potential applications ranging from circuit layout design, statistical physics, computer vision,...
Given an undirected, unweighted graph with n vertices and m edges, the maximum cut problem is to find a partition of into disjoint subsets V1 V2 such that number edges between them as large possible. Classically, it NP-complete problem, which has potential applications ranging from circuit layout design, statistical physics, computer vision, machine learning network science clustering. In this paper, we propose biomolecular quantum algorithm solve for any G. The inspired by quadratic speedup...
A bstract Using 7.33 fb − 1 of e + collision data samples collected with the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we search for radiative decay $$ {D}_s^{+}\to \gamma \rho {(770)}^{+} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mo>→</mml:mo> <mml:mi>γρ</mml:mi> <mml:msup> <mml:mfenced> <mml:mn>770</mml:mn> </mml:mfenced> </mml:msup> </mml:math> first...
Several motor imagery classification methods have been developed and achieve higher accuracy. Machine learning (ML) based algorithms utilizing manually designed features often encounter robustness issues, leading to diminished While deep (DL) exhibit promising accuracy, their extensive computational requirements present challenges in implementing them on portable devices, thereby restricting practical applications. In this paper, we improve the ML-based algorithm's feature problems by...
Using a data sample corresponding to an integrated luminosity of 2.93 fb$^{-1}$ collected at center-of-mass energy 3.773~GeV with the BESIII detector BEPCII collider, we search for scalar partner $X(3872)$, denoted as $X(3700)$, via $ψ(3770)\to γηη'$ and $γπ^{+}π^{-}J/ψ$ processes. No significant signals are observed upper limits product branching fractions $ {\cal B}(ψ(3770)\toγX(3700))\cdot B}(X(3700)\to ηη')$ ${\cal B}(X(3700)\toπ^{+}π^{-}J/ψ)$ determined 90\% confidence level, narrow...