Nonperturbative structure of the quark-gluon vertex
J. I. Skullerud, P. O. Bowman, A. Kizilersu, D. B. Leinweber, A. G. Williams
Abstract
The complete tensor structure of the quark--gluon vertex in Landau gauge is determined at two kinematical points (`asymmetric' and `symmetric') from lattice QCD in the quenched approximation. The simulations are carried out at beta=6.0, using a mean-field improved Sheikholeslami-Wohlert fermion action, with two quark masses ~ 60 and 115 MeV. We find substantial deviations from the abelian form at the asymmetric point. The mass dependence is found to be negligible. At the symmetric point, the form factor related to the chromomagnetic moment is determined and found to contribute significantly to the infrared interaction strength.
Create a lesson
Related papers
From Earth to Mars and Beyond: AI-Driven Cosmic-Ray Validation and Prediction with CorsikaAgent
Zhuo Chen, Zhizheng Zhao, Jinhong Shen et al.
Parton distribution functions and strong coupling constant: MSHT
T. Cridge, L. A. Harland-Lang, M. Reader et al.
Concurrence Dynamics in Self-Gravitating Mixed Neutrinos
Raoul Serao, Gianpaolo Torre, Antonio Capolupo
Probing first-generation doublet vector-like leptons via single production at the 3 TeV CLIC
Yin-Hao Gao, Yao-Bei Liu, Stefano Moretti
Nonequilibrium framework for first-order phase transitions
Jie Liu, Ligong Bian
Probing LZ-Motivated TeV Higgsino Dark Matter through Heavier Sparticles at LHC
Xintian Wang, Jin Min Yang, Yuanfang Yue et al.