A5107941640- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Cosmology and Gravitation Theories
- Electrical and Bioimpedance Tomography
- Advanced MRI Techniques and Applications
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Digital Media and Visual Art
- Advanced NMR Techniques and Applications
- Creativity in Education and Neuroscience
- Magnetic confinement fusion research
- Astrophysics and Cosmic Phenomena
- Aesthetic Perception and Analysis
Peking University
2021-2025
Central China Normal University
2024-2025
State Key Laboratory of Nuclear Physics and Technology
2021-2025
University of Edinburgh
2023
University of Science and Technology of China
2021-2022
University of South China
2019-2021
Tsinghua University
2011-2020
Fermi National Accelerator Laboratory
2010-2014
Centro Brasileiro de Pesquisas Físicas
2014
Bursa Uludağ Üni̇versi̇tesi̇
2013
The cross section of the process $e^{+} e^{-} \rightarrow K^{+} K^{-}$ is measured at a number center-of-mass energies $\sqrt{s}$ from 2.00 to 3.08 GeV with BESIII detector Beijing Electron Positron Collider (BEPCII). results provide best precision achieved so far. A resonant structure around 2.2 observed in line shape. Breit-Wigner fit yields mass $M=2239.2 \pm 7.1 11.3$~and width $\Gamma=139.8\pm12.3\pm20.6$ MeV, where first uncertainties are statistical and second ones systematic. In...
Using a sample of (10.09±0.04)×10^{9} J/ψ events collected with the BESIII detector operating at BEPCII storage ring, partial wave analysis decay J/ψ→γηη^{'} is performed. The first observation an isoscalar state exotic quantum numbers J^{PC}=1^{-+}, denoted as η_{1}(1855), reported in process J/ψ→γη_{1}(1855) η_{1}(1855)→ηη^{'}. Its mass and width are measured to be (1855±9_{-1}^{+6}) MeV/c^{2} (188±18_{-8}^{+3}) MeV, respectively, where uncertainties statistical second systematic, its...
Based on a sample of (10.09$\pm$0.04)$\times$10$^{9}$ $J/\psi$ events collected with the BESIII detector operating at BEPCII storage ring, partial wave analysis decay $J/\psi \rightarrow \gamma\eta\eta'$ is performed. An isoscalar state exotic quantum numbers $J^{PC}=1^{-+}$, denoted as $\eta_1(1855)$, has been observed for first time statistical significance larger than 19$\sigma$. Its mass and width are measured to be (1855$\pm$9$_{-1}^{+6}$)~MeV/$c^{2}$ (188$\pm$18$_{-8}^{+3}$)~MeV,...
Based on a sample of $(1310.6\ifmmode\pm\else\textpm\fi{}10.5)\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $J/\ensuremath{\psi}$ events collected with the BESIII detector operating at BEPCII storage ring, partial wave analysis decay $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\phi}\ensuremath{\phi}$ is performed in order to study intermediate states. Results show that structures are predominantly ${0}^{\ensuremath{-}+}$ The existence $\ensuremath{\eta}(2225)$...
The number of ψ' events accumulated by the BESIII experiment from March 3 through April 14, 2009, is determined counting inclusive hadronic events. result 106.41×(1.00±0.81%)×106. error systematic dominant; statistical negligible.
Using $e^+e^-\to\Lambda_c^+\bar\Lambda_c^-$ production from a 567 pb$^{-1}$ data sample collected by BESIII at 4.6 GeV, full angular analysis is carried out simultaneously on the four decay modes of $\Lambda_c^+\to pK_S^0$, $\Lambda \pi^+$, $\Sigma^+\pi^0$, and $\Sigma^0\pi^+$. For first time, $\Lambda_c^+$ transverse polarization studied in unpolarized $e^+e^-$ collisions, where non-zero effect observed with statistical significance 2.1$\sigma$. The asymmetry parameters weak hadronic decays...
Human perception is inclined towards detecting and attending to negative stimuli, a phenomenon known as negativity bias. While extensively studied in various domains of human cognition, its manifestation the attentional engagement with visual art remains largely unexplored. The present study (105 participants) established how viewing times on sample 60 different artworks (digitised paintings taken from openly available sources) relate subjective ratings artistic value, emotional valence...
We measure the Born cross sections of process $e^{+}e^{-} \to K^{+}K^{-}K^{+}K^{-}$ at center-of-mass (c.m.) energies, $\sqrt{s}$, between 2.100 and 3.080 GeV. The data were collected using BESIII detector BEPCII collider. An enhancement $\sqrt{s}= 2.232$ GeV is observed, very close to \Lambda \overline{\Lambda}$ production threshold. A similar same c.m. energy observed in \phi K^{+}K^{-}$ section. dependence $K^{+}K^{-}K^{+}K^{-}$ $\phi differs significantly from that \pi^{+}\pi^{-}$.
Using $1.31 \times 10^9$ $J/\psi$ events collected by the BESIII detector at BEPCII $e^+e^-$ collider, we report first observation of $h_1(1380)$ in $J/\psi \to \eta^{\prime} h_1(1380)$ with a significance more than ten standard deviations. The mass and width possible axial-vector strangeonium candidate are measured to be $M = (1423.2 \pm 2.1 7.3)\mevcc$ $\Gamma (90.3 9.8 17.5)\mev$. product branching fractions, assuming no interference, determined $\mathcal{B}(J/\psi \eta^{\prime}h_1(1380))...
Based on a data sample of 106 M $\psi^{\prime}$ events collected with the BESIII detector, decays $\psi^{\prime}\ar\gamma\chi_{c0, 2}$,$\chi_{c0, 2}\ar\gamma\gamma$ are studied to determine two-photon widths $\chi_{c0, 2}$ states. The decay branching fractions determined be ${\cal B}(\chi_{c0}\ar\gamma\gamma) = (2.24\pm 0.19\pm 0.12\pm 0.08)\times 10^{-4}$ and B}(\chi_{c2}\ar\gamma\gamma) (3.21\pm 0.18\pm 0.17\pm 0.13)\times 10^{-4}$. From these, $\Gamma_{\gamma \gamma}(\chi_{c0})...
Using a sample of $1.06\ifmmode\times\else\texttimes\fi{}{10}^{8}\ensuremath{\psi}(3686)$ events collected with the BESIII detector at BEPCII, decays ${\ensuremath{\eta}}_{c}(2S)\ensuremath{\rightarrow}p\overline{p}$ and ${h}_{c}\ensuremath{\rightarrow}p\overline{p}$ are searched for, where ${\ensuremath{\eta}}_{c}(2S)$ ${h}_{c}$ reconstructed in decay chains $\ensuremath{\psi}(3686)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\eta}}_{c}(2S)$,...
Using $106\times10^6$ $\psi(2S)$ events collected with the BESIII detector at BEPCII storage ring, higher-order multipole amplitudes in radiative transition $\psi(2S)\to\gamma\chi_{c2}\to\gamma\pi\pi/\gamma KK$ are measured. A fit to $\chi_{c2}$ production and decay angular distributions yields $M2=0.046\pm0.010\pm0.013$ $E3=0.015\pm0.008\pm0.018$, where first errors statistical second systematic. Here $M2$ denotes normalized magnetic quadrupole amplitude $E3$ electric octupole amplitude....
First measurements of the decays three χcJ states to p¯pK+K− final are presented. Intermediate ϕ→K+K− and Λ(1520)→pK− resonance observed, branching fractions for χcJ→¯pK+Λ(1520), Λ(1520)¯¯¯Λ(1520), ϕp¯p reported. We also measure direct χcJ→p¯pK+K− decays. These first observations unstable baryon resonances provide useful information about states. The experiment uses samples mesons produced via radiative transitions from 106×106 ψ′ collected in BESIII detector at BEPCII e+e− collider.Received...
Based on 106 million $\psi(3686)$ events collected with the BESIII detector at BEPCII, decay $\psi(3686) \rightarrow \omega K \bar{K} \pi$ is studied. Enhancements around 1.44 GeV/$c^{2}$ and $f_{1}(1285)$ are observed in mass spectrum of $K \bar{K}\pi$, corresponding branching fractions measured, as well K^{*+}K^{-}+c.c.$ \bar{K}^{*0}K^{0}+c.c.$, all for first time.
Using a data sample of $(1310.6 \pm 7.0) \times 10^{6}$ $J/\psi$ events taken with the BESIII detector at center-of-mass energy 3.097 GeV, we search for first time lepton number violating decay $\Sigma^{-} \to p e^{-} e^{-}$ and rare inclusive \Sigma^{+} X$, where $X$ denotes any possible particle combination. The $\Sigma^-$ candidates are tagged in $J/\psi \bar{\Sigma}(1385)^+\Sigma^-$ decays. No signal found, upper limits on branching fractions 90\% confidence level determined to be...
Using a sample of $1.31\ifmmode\times\else\texttimes\fi{}{10}^{9}\text{ }\text{ }J/\ensuremath{\psi}$ events collected with the BESIII detector, we perform study $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\eta}\ensuremath{\eta}{\ensuremath{\eta}}^{\ensuremath{'}}$ to search for $X(2370)$ and ${\ensuremath{\eta}}_{c}$ in $\ensuremath{\eta}\ensuremath{\eta}{\ensuremath{\eta}}^{\ensuremath{'}}$ invariant mass distribution. No significant signal is observed, set...
Using a sample of $1.31 \times 10^{9}$ $J/\psi$ events collected with the BESIII detector at BEPCII collider, we study decays $J/\psi \rightarrow K_S K_L$ and $K_S K_S$. The branching fraction of$J/\psi\rightarrow is determined to be ${\cal B}(J/\psi K_L)=(1.93\pm0.01~(\rm{stat.})\pm0.05~(\rm{syst.}))\times10^{-4}$, which significantly improves on previous measurements. No clear signal observed for K_S$ process, upper limit 95% confidence level its K_S)<1.4\times10^{-8}$, searches by two...
By analyzing an ${e}^{+}{e}^{\ensuremath{-}}$ data sample corresponding to integrated luminosity of $2.93\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ taken at a center-of-mass energy 3.773 GeV with the BESIII detector, we measure branching fractions Cabibbo-favored hadronic decays ${D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\eta}}^{\ensuremath{'}}$,...
Using a sample of $448.1\ifmmode\times\else\texttimes\fi{}{10}^{6}\text{ }\text{ }\ensuremath{\psi}(3686)$ events collected with the BESIII detector in 2009 and 2012, we study decays ${\ensuremath{\chi}}_{c0,2}\ensuremath{\rightarrow}{\ensuremath{\eta}}^{\ensuremath{'}}{\ensuremath{\eta}}^{\ensuremath{'}}$ $\ensuremath{\eta}{\ensuremath{\eta}}^{\ensuremath{'}}$. The ${\ensuremath{\chi}}_{c2}\ensuremath{\rightarrow}{\ensuremath{\eta}}^{\ensuremath{'}}{\ensuremath{\eta}}^{\ensuremath{'}}$,...