第五届中国格点量子色动力学研讨会

Session

11 Oct 2025, 10:40

Conveners

主会六

• 旭 冯 ()

Contribution list Timetable

27. Development on the precise control of systematic uncertainties on CLQCD ensembles

Prof. 一玻 杨 (ITP,CAS)

11/10/2025, 10:40

Obtaining hadron masses and matrix elements using Lattice QCD can suffer from kinds of systematic uncertainties. I will introduce the recent developments on CLQCD ensembles for better controls on systematic uncertainties from kinds of origins, and also preliminary investigation on the QED correction using the improved QED$_{\rm L}$ scheme.

4. 核子质量和sigma项的两圈计算与手征外推

Prof. 泽锐 梁

11/10/2025, 11:10

The pion-nucleon sigma term, characterizing the mass component of Higgs origin related to $u$ and $d$ quarks inside the nucleon, is investigated within relativistic baryon chiral perturbation theory at leading two-loop order using the extended-on-mass-shell renormalization scheme. The two-loop representation of the sigma term is derived from the nucleon mass via the Feynman-Hellmann theorem...

13. Accurate B meson and Bottomonium masses and decay constants from the tadpole improved clover ensembles

Dr 孟初 蔡 (Institute of Theoretical Physics, Chinese Academy of Sciences)

11/10/2025, 11:40

Using the anisotropic relativistic fermion action on isotropic lattice, we present a systematic study of the masses and lepton decay constants of the mesons with the bottom quark based on the 2+1 flavor tadpole improved clover ensembles at different lattice spacings from 0.05 to 0.11 fm, various pion masses from 130 to 360 MeV, and several values of the strange quark mass. We also propose a...