Conveners
分会四
- 俊 华 ()
Lattice QCD provides a first-principles framework for solving Quantum Chromodynamics (QCD). However, its application to off-shell partons has been largely restricted to the Landau gauge, as achieving high-precision $\xi$-gauge fixing on the lattice poses significant challenges. Motivated by a universal power-law dependence of off-shell parton matrix elements on gauge-fixing precision in the...
We present the physical quark masses and low energy constants using gauge ensembles with 2+1+1 flavors Highly Improved Staggered Quark, using the clover valence fermion. The bare strange-quark mass is fixed from the ηs mass, and the bare charm-quark mass is obtained from the Ds meson mass.
W e have investigated various approaches to address the potential inverse problem involved in the limited inverse Fourier transform of quasi-distributions. The methods explored include the Tikhonov regularization method, the Backus–Gilbert method, the Bayesian approach, and genetic algorithms coupled with artificial neural networks. Using both simulated data and actual lattice data, we tested...
