A5033982342- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Gamma-ray bursts and supernovae
- Hormonal Regulation and Hypertension
- Adrenal and Paraganglionic Tumors
- Nuclear Physics and Applications
- Advanced biosensing and bioanalysis techniques
- Scientific Research and Discoveries
- Advanced NMR Techniques and Applications
- Rare-earth and actinide compounds
Second Affiliated Hospital of Dalian Medical University
2022-2025
Fudan University
2018-2024
Institute of High Energy Physics
2013-2024
First Affiliated Hospital of Chengdu Medical College
2022-2024
Chengdu Medical College
2024
Institute of Modern Physics
2018-2024
Guangxi Medical University
2022-2024
Central South University
2023-2024
China Center of Advanced Science and Technology
2013-2024
Qualcomm (United Kingdom)
2005-2024
We report a measurement of the ratio ${\cal R}(D^*) = {\cal B}(\bar{B}^0 \rightarrow D^{*+} \tau^- \bar{\nu}_{\tau})/{\cal \ell^- \bar{\nu}_{\ell})$, where $\ell$ denotes an electron or muon. The results are based on data sample containing $772\times10^6$ $B\bar{B}$ pairs recorded at $\Upsilon(4S)$ resonance with Belle detector KEKB $e^+ e^-$ collider. select $B^0 \bar{B}^0$ by reconstructing both $B$ mesons in semileptonic decays to $D^{*\mp} \ell^{\pm}$. measure R}(D^*)= 0.302 \pm...
We present a measurement of ${R}_{{K}^{*}}$, the branching fraction ratio $\mathcal{B}(B\ensuremath{\rightarrow}{K}^{*}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}})/\mathcal{B}(B\ensuremath{\rightarrow}{K}^{*}{e}^{+}{e}^{\ensuremath{-}})$, for both charged and neutral $B$ mesons. The case ${R}_{{K}^{*+}}$ is first ever performed. In addition, we report absolute fractions individual modes in bins squared dilepton invariant mass ${q}^{2}$. analysis based on data sample $711\text{...
Abstract Further increasing the critical temperature and/or decreasing stabilized pressure are general hopes for hydride superconductors. Inspired by low associated with Ce 4 f electrons in superconducting cerium superhydride and high yttrium superhydride, we carry out seven independent runs to synthesize yttrium-cerium alloy hydrides. The synthetic process is examined Raman scattering X-ray diffraction measurements. superconductivity obtained from observed zero-resistance state detected...
Using the entire Belle data sample of 980 ${\rm fb}^{-1}$ $e^+e^-$ collisions, we present results a study excited $\Omega_c$ charmed baryons in decay mode $\Xi_c^+K^-$. We show confirmation four five narrow states reported by LHCb Collaboration: $\Omega_c(3000)$ , $\Omega_c(3050)$, $\Omega_c(3066)$, and $\Omega_c(3090)$.
We perform a full amplitude analysis of the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}J/\ensuremath{\psi}D\overline{D}$, where $D$ refers to either ${D}^{0}$ or ${D}^{+}$. A new charmoniumlike state ${X}^{*}(3860)$ that decays $D\overline{D}$ is observed with significance $6.5\ensuremath{\sigma}$. Its mass $({3862}_{\ensuremath{-}32}^{+26}{\text{ }}_{\ensuremath{-}13}^{+40})\text{ }\text{ }\mathrm{MeV}/{c}^{2}$, and its width $({201}_{\ensuremath{-}67}^{+154}{\text{...
Abstract Fast radio bursts (FRBs) are short pulses observed in band from cosmological distances, some of which emit repeating bursts. The physical origins these mysterious events have been subject to wide speculations and heated debates. One class models invoke soft gamma-ray repeaters (SGRs), or magnetars, as the sources FRBs. Magnetars rotating neutron stars with extremely strong magnetic field can sporadically X-ray (keV) (sub-MeV) duration 102 s 102 s. However, even though bright no...
Using a data sample of $980\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ ${e}^{+}{e}^{\ensuremath{-}}$ annihilation taken with the Belle detector operating at KEKB asymmetric-energy collider, we report results study excited ${\mathrm{\ensuremath{\Xi}}}_{c}$ states that decay, via emission photons and/or charged pions, into ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}$ or ${\mathrm{\ensuremath{\Xi}}}_{c}^{+}$ ground state charmed-strange baryons. We present new measurements masses all members...
Using data collected with the Belle detector at KEKB asymmetric-energy $e^+e^-$ collider, we measure energy dependence of $e^+e^- \to h_b(nP)\pi^+\pi^-$ $(n=1,2)$ cross sections from thresholds up to $11.02\,$GeV. We find clear $\Upsilon(10860)$ and $\Upsilon(11020)$ peaks little or no continuum contribution. study resonant substructure $\Upsilon(11020) transitions evidence that they proceed entirely via intermediate isovector states $Z_b(10610)$ $Z_b(10650)$. The relative fraction these is...
Hashimoto's thyroiditis (HT) is a prevalent autoimmune disorder, yet the metabolic abnormalities associated with HT and their relationship to antibody positivity remain poorly understood. This study aimed characterize distinct profiles thyroid peroxidase (TPOAb) thyroglobulin (TgAb) in female patients HT. Serum metabolomic analysis was performed on 14 TPOAb-positive patients, 4 TgAb-positive sex-matched healthy controls, evaluating total of 225 metabolites. Partial least squares discriminant...
We report the discovery of ${\mathrm{\ensuremath{\Xi}}}_{c}(3055{)}^{0}$, observed by its decay into final-state $\mathrm{\ensuremath{\Lambda}}{D}^{0}$, and present first observation evidence decays ${\mathrm{\ensuremath{\Xi}}}_{c}(3055{)}^{+}$ ${\mathrm{\ensuremath{\Xi}}}_{c}(3080{)}^{+}$ $\mathrm{\ensuremath{\Lambda}}{D}^{+}$. also perform a combined analysis $\mathrm{\ensuremath{\Lambda}}{D}^{+}$ with ${\mathrm{\ensuremath{\Sigma}}}_{c}^{++}{K}^{\ensuremath{-}}$...
We report the first observation of $$\Xi _{c}(2930)^0$$ charmed-strange baryon with a significance greater than 5 $$\sigma $$ . The is found in its decay to $$K^- \Lambda _{c}^+$$ $$B^{-} \rightarrow K^{-} _{c}^{+} \bar{\Lambda }_{c}^{-}$$ decays. measured mass and width are $$[2928.9 \pm 3.0(\mathrm stat.)^{+0.9}_{-12.0}(\mathrm syst.)]$$ MeV/ $$c^{2}$$ $$[19.5 8.4(\mathrm stat.) ^{+5.9}_{-7.9}(\mathrm MeV, respectively, product branching fraction $$\mathcal{B}(B^{-} \Xi _{c}(2930)^0...
In this work, we report the in-orbit demonstration of X-ray pulsar navigation with Insight-Hard Modulation Telescope (Insight-HXMT), which was launched on Jun. 15th, 2017. The new method 'Significance Enhancement Pulse-profile Orbit-dynamics' (SEPO) is adopted to determine orbit observations only one pulsar. test, Crab chosen and observed by Insight-HXMT from Aug. 31th Sept. 5th in Using 5-day-long observation data, determined successfully three telescopes onboard - High Energy (HE), Medium...
We report the first observation of double strange baryon Ξ(1620)^{0} in its decay to Ξ^{-}π^{+} via Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} decays based on a 980 fb^{-1} data sample collected with Belle detector at KEKB asymmetric-energy e^{+}e^{-} collider. The mass and width are measured be 1610.4±6.0(stat)_{-4.2}^{+6.1} (syst) MeV/c^{2} 59.9±4.8(stat)_{-7.1}^{+2.8}(syst) MeV, respectively. obtain 4.0σ evidence Ξ(1690)^{0} same sample. These results shed light structure hyperon resonances strangeness S=-2.
A bstract We report a new measurement of the e + − → ϒ( nS ) π ( n = 1 , 2 3) cross sections at energies from 10 . 52 to 11 02 GeV using data collected with Belle detector KEKB asymmetric-energy collider. observe structure in energy dependence sections; if described by Breit-Wigner function its mass and width are found be $$ M=\left(10752.7\pm {5.9}_{-1.1}^{+0.7}\right)\mathrm{MeV}/{c}^2 <mml:math...
This paper presents a search for the rare flavor-changing neutral current process ${B}^{0}\ensuremath{\rightarrow}{K}^{*0}{\ensuremath{\tau}}^{+}{\ensuremath{\tau}}^{\ensuremath{-}}$ using data taken with Belle detector at KEKB asymmetric energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. The analysis is based on entire $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance sample of $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, corresponding to...
We report our theoretical calculations on the branching fractions for semileptonic $B$ and $B_s$ decays, i.e., $B (B_s) \to (P,\, V,\, S,\,A) \ell \nu_\ell$, where $P$ $V$ denote pseudoscalar vector mesons, respectively, while $S$ denotes scalar meson with mass above 1 GeV $A$ axial-vector meson. The $B\to P$ modes have been measured very well in experiment values are good agreement them. ones S$ predictions. There is little experimental information decays although much effort has done. In...
We measure the inclusive production cross sections of hyperons and charmed baryons from ${e}^{+}{e}^{\ensuremath{-}}$ annihilation using a $800\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample taken near $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance with Belle detector at KEKB asymmetric-energy collider. The feed-down contributions heavy particles are subtracted our data, direct presented for first time. divided by number spin states $S=\ensuremath{-}1$ follow an exponential...
Clathrate hydrideFm3-m-LaH10has been proven as the most extraordinary superconductor with critical temperatureTcabove 250 K upon compression of hundreds GPa in recent years. A general hope is to reduce stabilization pressure and maintain highTcvalue specific phase LaH10. However, strong structural instability distortsFm3-mstructure leads a rapid decrease ofTcat low pressures. Here, we investigate stability superconducting behaviors ofFm3-m-LaH10with enhanced chemical pre-compression through...