Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Gui-Long Cheng"'
Publikováno v:
SCIENCE CHINA Physics, Mechanics & Astronomy , Volume 67, Issue 11: 111012 (2024)
We perform the first lattice QCD study on the radiative decay of the scalar glueball to the vector meson $\phi$ in the quenched approximation. The calculations are carried out on three gauge ensembles with different lattice spacings, which enable us
Externí odkaz:
http://arxiv.org/abs/2404.01564
We implement a convolutional neural network to study the $\Sigma$ hyperons using experimental data of the $K^-p\to\pi^0\Lambda$ reaction. The averaged accuracy of the NN models in resolving resonances on the test data sets is ${\rm 98.5\%}$, ${\rm 94
Externí odkaz:
http://arxiv.org/abs/2305.01852
We present the first lattice QCD calculation about the mass decomposition of triply charmed baryons with $J^{P}$ as $\frac{3}{2}^{+}$ and $\frac{3}{2}^{-}$. The quark mass term $\langle H_{M} \rangle$ contributes about 66\% to the mass of $\frac{3}{2
Externí odkaz:
http://arxiv.org/abs/2211.04713
Publikováno v:
Phys. Lett. B, 827(2022)136960
We carry out the first lattice QCD derivation of the mixing energy and the mixing angle of the pseudoscalar charmonium and glueball on two gauge ensembles with $N_f=2$ degenerate dynamical charm quarks. The mixing energy is determined to be $49(6)$ M
Externí odkaz:
http://arxiv.org/abs/2107.12749
Autor:
Huo, Yi-Kai, Su, Yushan, Gui, Long-Cheng, Ji, Xiangdong, Li, Yuan-Yuan, Liu, Yizhuang, Schäfer, Andreas, Schlemmer, Maximilian, Sun, Peng, Wang, Wei, Yang, Yi-Bo, Zhang, Jian-Hui, Zhang, Kuan
In applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences in the self-energy of Wilson lines. Based on lattice QCD matrix elements of the quasi-PDF ope
Externí odkaz:
http://arxiv.org/abs/2103.02965
Publikováno v:
Chin.Phys. C45 (2021) no.2, 023116
In this work we calculate the mass spectrum of strangeonium up to the $3D$ multiplet within a nonrelativistic linear potential quark model. Furthermore, using the obtained wave functions, we also evaluate the strong decays of the strangeonium states
Externí odkaz:
http://arxiv.org/abs/2004.05786
Publikováno v:
Phys. Rev. D 100, 054511 (2019)
We aim to explore the production rate of the pseudoscalar glueball in $J/\psi$ radiative decay by lattice QCD in quenched approximation. The calculation is performed on three anisotropic lattices with the spatial lattice spacing ranging from 0.222(2)
Externí odkaz:
http://arxiv.org/abs/1906.03666
Inspired by the new resonance $Y(10750)$, we calculate the masses and two-body OZI-allowed strong decays of the higher vector bottomonium sates within both screened and linear potential models. We discuss the possibilities of $\Upsilon(10860)$ and $Y
Externí odkaz:
http://arxiv.org/abs/1905.10344
Publikováno v:
Phys. Rev. D 99, 096020 (2019)
Using the newly measured masses of $B_c(1S)$ and $B_c(2S)$ from the CMS Collaboration and the $1S$ hyperfine splitting determined from the lattice QCD as constrains, we calculate the $B_c$ mass spectrum up to the $6S$ multiplet with a nonrelativistic
Externí odkaz:
http://arxiv.org/abs/1903.11927
Publikováno v:
Phys. Rev. D 98, 114023 (2018)
Stimulated by the newly discovered $\Omega(2012)$ resonance at Belle II, in this work we have studied the OZI allowed strong decays of the low-lying $1P$- and $1D$-wave $\Omega$ baryons within the $^3P_0$ model. It is found that $\Omega(2012)$ is mos
Externí odkaz:
http://arxiv.org/abs/1810.08318