Zobrazeno 1 - 10
of 7 204
pro vyhledávání: '"Yi, Bo"'
A recent analysis of the LHCb data [Phys. Rev. D 105 (2022) L031503] obtained a sizable negative effective range for the $X(3872)$. This has attracted intensive discussions on whether $X(3872)$ can be deemed as a $D\bar{D}^*$ molecular state. This wo
Externí odkaz:
http://arxiv.org/abs/2409.06409
The research of the properties of neutron stars with dark energy is a particularly interesting yet unresolved problem in astrophysics. We analyze the influence of dark energy on the equation of state, the maximum mass, the surface gravitational redsh
Externí odkaz:
http://arxiv.org/abs/2409.00441
Autor:
Chen, Chen, Liu, Liuming, Sun, Peng, Yang, Yi-Bo, Geng, Yiqi, Yao, Fei, Zhang, Jian-Hui, Zhang, Kuan
We report a lattice QCD calculation of the parton distribution function (PDF) of a deuteron-like dibaryon system using large-momentum effective theory. The calculation is done on three Wilson Clover ensembles with a fixed lattice spacing a=0.105 fm a
Externí odkaz:
http://arxiv.org/abs/2408.12819
Charmed meson masses and decay constants in the continuum from the tadpole improved clover ensembles
Autor:
Du, Hai-Yang, Hu, Bolun, Chen, Ying, Ding, Heng-Tong, Liu, Chuan, Liu, Liuming, Meng, Yu, Sun, Peng, Wang, Ji-Hao, Yang, Yi-Bo, Zhao, Dian-Jun
We present the determination of the charm quark mass, the masses and decay constants of charmed mesons using thirteen 2+1 flavor full-QCD gauge ensembles at five different lattice spacings $a\in[0.05,0.11]$ fm, 8 pion masses $m_{\pi}\in(130,360)$ MeV
Externí odkaz:
http://arxiv.org/abs/2408.03548
We perform the first lattice calculation on the semileptonic decay of $J/\psi$ using the (2+1)-flavor Wilson-clover gauge ensembles generated by CLQCD collaboration. Three gauge ensembles with different lattice spacings, from 0.0519 fm to 0.1053 fm,
Externí odkaz:
http://arxiv.org/abs/2407.13568
Autor:
Zhang, Kuan, Huo, Yi-Kai, Ji, Xiangdong, Schaefer, Andreas, Shi, Chun-Jiang, Sun, Peng, Wang, Wei, Yang, Yi-Bo, Zhang, Jian-Hui
We analyze the gauge fixing precision dependence of some non-local quark-blinear lattice operators interesting in computing parton physics for several measurements, using 5 lattice spacings ranging from 0.032 fm to 0.121 fm. Our results show that gau
Externí odkaz:
http://arxiv.org/abs/2405.14097
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 present the lattice QCD simulation with the 2+1+1 flavor full QCD ensembles using near-physical quark masses and different spatial sizes $L$, at $a\sim$ 0.055 fm. The results suggest that spontaneous chiral symmetry breaking is effectively restore
Externí odkaz:
http://arxiv.org/abs/2403.01378
We report on multiwavelength studies of a blazar NVSS J171822+423948, which is identified as the low-energy counterpart of 4FGL J1718.5+4237, the unique $\gamma$-ray source known to be cospatial with the IceCube neutrino event IC-201221A. After a 12-
Externí odkaz:
http://arxiv.org/abs/2401.12122
Autor:
Wang, Bigeng, He, Fangcheng, Wang, Gen, Draper, Terrence, Liang, Jian, Liu, Keh-Fei, Yang, Yi-Bo
The hadron mass can be obtained through the calculation of the trace of the energy-momentum tensor in the hadron which includes the trace anomaly and sigma terms. The anomaly due to conformal symmetry breaking is believed to be an important ingredien
Externí odkaz:
http://arxiv.org/abs/2401.05496