A5049609145- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Neutrino Physics Research
- Advanced Malware Detection Techniques
- Scientific Research and Discoveries
- Advanced Memory and Neural Computing
- Atomic and Subatomic Physics Research
- EEG and Brain-Computer Interfaces
- International Science and Diplomacy
- Network Security and Intrusion Detection
- Dark Matter and Cosmic Phenomena
- Energy Efficient Wireless Sensor Networks
Jilin Medical University
2024-2025
Jilin University
2024-2025
Jimei University
2024
Liaoning University
2014-2024
Lanzhou University
2023
China Center of Advanced Science and Technology
2015
COMSATS University Islamabad
2015
Beijing Institute of Petrochemical Technology
2015
We present a study of the process e+e−→π±(DD¯*)∓ using data samples 1092 pb−1 at s=4.23 GeV and 826 s=4.26 collected with BESIII detector BEPCII storage ring. With full reconstruction D meson pair bachelor π± in final state, we confirm existence charged structure Zc(3885)∓ (DD¯*)∓ system two isospin processes e+e−→π+D0D*− e+e−→π+D−D*0. By performing simultaneous fit, statistical significance signal is determined to be greater than 10σ, its pole mass width are measured...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>20.3</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:msup><a:mrow><a:mi>fb</a:mi></a:mrow><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:mrow></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...
Using 2.92~fb$^{-1}$ of electron-positron annihilation data collected at $\sqrt{s} = 3.773$~GeV with the BESIII detector, we obtain first measurements absolute branching fraction $\mathcal{B}(D^+ \to K^0_L e^+ \nu_e) (4.481 \pm 0.027(\mathrm{stat.}) 0.103(\mathrm{sys.}))\%$ and $CP$ asymmetry $A_{CP}^{D^+ \nu_e} (-0.59 0.60(\mathrm{stat.}) 1.48(\mathrm{sys.}))\%$. From $D^+ \nu_e$ differential decay rate distribution, product hadronic form factor magnitude CKM matrix element,...
Based on data samples collected with the BESIII detector operating at BEPCII storage ring center-of-mass energies $\sqrt{s} >$ 4.4 GeV, processes $e^+e^- \rightarrow \omega \chi_{c1,2}$ are observed for first time. With an integrated luminosity of $1074 pb^{-1}$ near =$ 4.42 a significant $\omega \chi_{c2}$ signal is found, and cross section measured to be $(20.9 \pm 3.2 2.5)\pb$. $567 4.6 clear \chi_{c1}$ seen, $(9.5 2.1 1.3) \pb$, while evidence found signal. The errors statistical second...
Using data samples collected by the \mbox{BESIII} detector located at Beijing Electron Positron Collider, cross sections of process $e^+e^-\to f_{1}(1285)\pi^+\pi^-$ are measured forty-five center-of-mass energies from $3.808$ to $4.951 {\rm GeV}$. An investigation on section line shape is performed, and no significant structure observed.
A bstract Based on 7.33 fb − 1 of e + collision data collected by the BESIII detector operating at BEPCII collider center-of-mass energies from 4.128 to 4.226 GeV, a search for Majorana neutrino ν m is conducted in lepton-number-violating decays $$ {D}_{\textrm{s}}^{+} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> → h 0 . Here, represents K or π , and {K}_S^0 <mml:mi>K</mml:mi>...
A bstract By analyzing e + − collision data with an integrated luminosity of 7.9 fb 1 collected the BESIII detector at center-of-mass energy 3.773 GeV, branching fraction D → τ ν is determined as $$ \mathcal{B} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>B</mml:mi> </mml:math> = (9.9 ± 1.1 stat 0.5 syst ) × 10 4 . Using most precise result ( μ (3.981 0.079 0.040 [1], we determine R τ/μ Γ( )/Γ( 2.49 0.31, achieving a factor two improvement in precision compared to...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo stretchy="false">(</a:mo><a:mrow><a:mn>2712</a:mn><a:mo>±</a:mo><a:mn>14</a:mn></a:mrow><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>6</a:mn></a:mrow></a:msup></a:mrow></a:math> <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:mi>ψ</e:mi><e:mo stretchy="false">(</e:mo><e:mn>2</e:mn><e:mi>S</e:mi><e:mo...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo stretchy="false">(</a:mo><a:mn>27.12</a:mn><a:mo>±</a:mo><a:mn>0.14</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>8</a:mn></a:mrow></a:msup></a:mrow></a:math> <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:mi>ψ</e:mi><e:mo stretchy="false">(</e:mo><e:mn>3686</e:mn><e:mo...
Using data samples collected with the BESIII detector operating at BEPCII storage ring, cross section of inclusive process e^{+}e^{-}→η+X, normalized by total e^{+}e^{-}→hadrons, is measured eight center-of-mass energy points from 2.0000 to 3.6710 GeV. These are first measurements momentum dependence in this region. Our measurement shows a significant discrepancy compared existing fragmentation functions. To address discrepancy, new QCD analysis performed next-to-next-to-leading order hadron...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>2.93</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 with the BESIII detector at center-of-mass energy 3.773 GeV, we investigate...
We perform an analysis of the ${D}^{+}\ensuremath{\rightarrow}{K}_{S}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$ Dalitz plot using a data set $2.92\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ ${e}^{+}{e}^{\ensuremath{-}}$ collisions at $\ensuremath{\psi}(3770)$ mass accumulated by BESIII experiment, in which 166694 candidate events are selected with background 15.1%. The is found to be well represented combination six quasi-two-body decay channels...
A bstract partial wave analysis on the process e + − → ωπ π is performed using 647 pb 1 of data sample collected by BESIII detector operating at BEPCII storage ring center-of-mass (c.m.) energies from 2.000 GeV to 3.080 GeV. The Born cross section measured, with precision improved a factor 3 compared that previous studies. structure near 2.25 observed in energy-dependent sections and 0 statistical significance 7.6 σ , its determined mass width are 2232 ± 19 27 MeV /c 2 93 53 20 MeV,...
The decay $Z_c(3900)^\pm\to\omega\pi^\pm$ is searched for using data samples collected with the BESIII detector operating at BEPCII storage ring center-of-mass energies $\sqrt{s}=4.23$ and $4.26$~GeV. No significant signal $Z_c(3900)^\pm$ found, upper limits 90\% confidence level on Born cross section process $e^+e^-\to Z_c(3900)^\pm\pi^\mp\to\omega\pi^+\pi^-$ are determined to be $0.26$ $0.18$ pb 4.26 GeV, respectively.
With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with BESIII detector BEPCII collider, a partial wave analysis on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>e</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>e</a:mi><a:mo>−</a:mo></a:msup><a:mo stretchy="false">→</a:mo><a:mrow><a:msup><a:mi>π</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mo>−</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mn>0</a:mn></a:msup></a:mrow></a:math>...
Using data samples collected by the BESIII detector operating at BEPCII storage ring, we measure $e^+e^- \to K_{S}^{0}K^{\pm}\pi^{\mp}$ Born cross sections center-of-mass energies between 3.8 and 4.6\,GeV, corresponding to a luminosity of about 5.0~fb$^{-1}$. The results are compatible with BABAR measurements, but precision significantly improved. A simple $1/s^n$ dependence for continuum process can describe measured sections, better fit is obtained an additional resonance near 4.2\,GeV,...
Using e+e− collision data corresponding to an integrated luminosity of 2.93 fb−1 taken at a center-of-mass energy 3.773 GeV with the BESIII detector, we determine absolute branching fractions B(D+→K0SK+)=(3.02±0.09±0.08)×10−3, B(D+→K0SK+π0)=(5.07±0.19±0.23)×10−3, B(D+→K0LK+)=(3.21±0.11±0.11)×10−3, and B(D+→K0LK+π0)=(5.24±0.22±0.22)×10−3, where first second uncertainties are statistical systematic, respectively. The fraction B(D+→K0SK+) is consistent world average value other three measured...
A bstract The Born cross sections of the processes e + − → ωπ 0 and ωη are measured at center-of-mass energies between 3.773 4.701 GeV using a total integrated luminosity 22.7 fb 1 collected with BESIII detector operating BEPCII collider. simple s −n dependence for continuum process can describe sections. No significant contributions from ψ (4160), Y (4230), (4360), (4415), (4660) resonances found, which indicates relative small branching fractions these into final states.
Using a data set with an integrated luminosity of 2.93 fb−1 collected at s=3.773 GeV the BESIII detector operating BEPCII storage rings, we search for rare decay D+→D0e+νe. No signal events are observed. We upper limit on branching fraction D+→D0e+νe to be 1.0×10−4 90% confidence level.Received 22 August 2017DOI:https://doi.org/10.1103/PhysRevD.96.092002Published by American Physical SocietyPhysics Subject Headings (PhySH)Research AreasElectroweak interactionParticle...
Using data samples with an integrated luminosity of $4.67~\mathrm{fb}^{-1}$ collected by the BESIII detector operating at BEPCII collider, we search for process $e^+e^- \rightarrow \eta' \psi(2S)$ center-of-mass energies from $4.66$ to $4.95~\mathrm{GeV}$. No significant signal is observed, and upper limits Born cross sections $\sigma^B(e^+e^-\rightarrow\eta'\psi(2S))$ 90\% confidence level are determined.
Using $e^+e^-$ collision data collected with the BESIII detector at BEPCII collider center-of-mass energies between 3.510 and 4.914GeV, corresponding to an integrated luminosity of 25 fb$^{-1}$, we measure Born cross sections for process $e^+e^-\to K^-\bar{\Xi}^+\Lambda/\Sigma^{0}$ thirty-five energy points a partial-reconstruction strategy. By fitting dressed K^-\bar{\Xi}^+\Lambda/\Sigma^{0}$, evidence $\psi(4160) \to K^{-}\bar\Xi^{+}\Lambda$ is found first time significance 4.4$\sigma$,...
Utilizing a data set of $6.7$ fb$^{-1}$ from electron-positron collisions recorded by the BESIII detector at BEPCII storage ring, search is conducted for processes $e^{+}e^{-} \to \phi \chi_{c0}$ and $\phi\eta_{c2}(1D)$ across center-of-mass energies 4.47 to 4.95 GeV. In absence any significant signals, upper limits are set. These include on Born cross sections \chi_{c0}$, as well product section \phi\eta_{c2}(1D)$ sum five branching fractions. Furthermore, electronic width $Y(4660)$...
We present a study of the semileptonic decay <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>D</a:mi><a:mn>0</a:mn></a:msup><a:mo stretchy="false">→</a:mo><a:msup><a:mi>π</a:mi><a:mo>−</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mn>0</a:mn></a:msup><a:msup><a:mi>e</a:mi><a:mo>+</a:mo></a:msup><a:msub><a:mi>ν</a:mi><a:mi>e</a:mi></a:msub></a:math> using an <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...