A much simpler and self-consistent derivation of the non-linear component Gu×Gv of the quantum chromodynamic SU(3) field tensor is given which does not require the postulate of color confinement to complete the d...A much simpler and self-consistent derivation of the non-linear component Gu×Gv of the quantum chromodynamic SU(3) field tensor is given which does not require the postulate of color confinement to complete the derivation and which mirrors SU(2)’s formal development.展开更多
Using the Hamiltonian lattice gauge theory,we perform some variational calculations to obtain the ground-state energy of SU(3)gauge field and scalar(0^(++))glueball mass.The agreement of our data with the strong and w...Using the Hamiltonian lattice gauge theory,we perform some variational calculations to obtain the ground-state energy of SU(3)gauge field and scalar(0^(++))glueball mass.The agreement of our data with the strong and weak expansion results in the corresponding limits indicates that this method can provide us reliable information in the most interesting medium region.The trial wave function used in our variational method is also proved to be a good first approximation of the ground-state of the SU(3)gauge field.Upgrading this function according to correlations of adjacent plaquettes may mean better result.展开更多
We investigate the SU(2)gauge effects on bilayer honeycomb lattice thoroughly.We discover a topological Lifshitz transition induced by the non-Abelian gauge potential.Topological Lifshitz transitions are determined by...We investigate the SU(2)gauge effects on bilayer honeycomb lattice thoroughly.We discover a topological Lifshitz transition induced by the non-Abelian gauge potential.Topological Lifshitz transitions are determined by topologies of Fermi surfaces in the momentum space.Fermi surface consists of N=8 Dirac points atπ-flux point instead of N=4 in the trivial Abelian regimes.A local winding number is defined to classify the universality class of the gapless excitations.We also obtain the phase diagram of gauge fluxes by solving the secular equation.Furthermore,the novel edge states of biased bilayer nanoribbon with gauge fluxes are also investigated.展开更多
Based on the SU(3) simple group model , we study the spin correction of the top quark pair production at the high energy linear e+e- collider (ILC) with a center-of-mass energy =800GeV. Our numerical results show that...Based on the SU(3) simple group model , we study the spin correction of the top quark pair production at the high energy linear e+e- collider (ILC) with a center-of-mass energy =800GeV. Our numerical results show that the gauge boson ZH exchange generates very small corrections to the spin correction observable in all the parameter space, which can not be detected in the future ILC experiments.展开更多
Monte Carlo(M-C)measurements of the SU(3)xSU(3)chiral model defined on a N×N 2-dimensional(2-D)random lattice are presented.Calculations are made of energy,specific heat and order parameter per spin on the 10...Monte Carlo(M-C)measurements of the SU(3)xSU(3)chiral model defined on a N×N 2-dimensional(2-D)random lattice are presented.Calculations are made of energy,specific heat and order parameter per spin on the 10×10,12×12 and 16×16 lattics.It is shown that the system enters a crossover region at β=4.75±0.10,but no evidences of phase transition are obtained.It is found that our results are consistent with that of the 4-D gauge theory and the 2-D chiral model on the regular lattice.展开更多
In the SU（3） simple group model, the new neutral gauge boson Z＇ couples to pairs of SM fermions with couplings fixed in terms of the SM gauge couplings and depending only on the choice of the fermion embedding. In ...In the SU（3） simple group model, the new neutral gauge boson Z＇ couples to pairs of SM fermions with couplings fixed in terms of the SM gauge couplings and depending only on the choice of the fermion embedding. In this paper, we calculate the contributions of this new particle to the processes e^＋e^-→l^＋l^-, bb^-, and cc^- and study the possibility of detecting this new particle via these processes in the future high-energy linear e^＋e^- collider（LC） experiments with √s= 500 GeV and ￡int= 340 fb^-1. We find that the new gauge boson Z＇ is most sensitive to the process e^＋e^-→b^＋b^-. As long as Mz,≤2 TeV , the absolute values of the relative correction parameter are larger than 5%. We calculate the forward-backward asymmetries and left-right asymmetries for the process e^＋e^-→c^＋c^-, with both the universal and anomaly-free fermion embeddings. Bounds on Z＇ masses are also estimated within 95% confidence level.展开更多
Fermion particle pair production in strong SU（2）-gauge chromoelectric fields is studied using the Boltzmann-Vlasov equation in a classical way. The existence of a preproduction process in a classical description is ...Fermion particle pair production in strong SU（2）-gauge chromoelectric fields is studied using the Boltzmann-Vlasov equation in a classical way. The existence of a preproduction process in a classical description is shown using the distribution evolution of non-Abelian particle production. It is interesting to find that the distribution of the particle number density is centered on two islands and shows a split on the color charge sphere as it evolves, ultimately reaching a steady state that is related to the amplitude and variation of the field.展开更多
文摘A much simpler and self-consistent derivation of the non-linear component Gu×Gv of the quantum chromodynamic SU(3) field tensor is given which does not require the postulate of color confinement to complete the derivation and which mirrors SU(2)’s formal development.
基金Supported by National Natural Science Foundation of China under Grant No.19775004the National Computation Fund.
文摘Using the Hamiltonian lattice gauge theory,we perform some variational calculations to obtain the ground-state energy of SU(3)gauge field and scalar(0^(++))glueball mass.The agreement of our data with the strong and weak expansion results in the corresponding limits indicates that this method can provide us reliable information in the most interesting medium region.The trial wave function used in our variational method is also proved to be a good first approximation of the ground-state of the SU(3)gauge field.Upgrading this function according to correlations of adjacent plaquettes may mean better result.
基金supported by the National Key R&D Program of China(Grant Nos.2021YFA1400900,2021YFA0718300,and 2021YFA1400243)the National Natural Science Foundation of China(Grant No.61835013)。
文摘We investigate the SU(2)gauge effects on bilayer honeycomb lattice thoroughly.We discover a topological Lifshitz transition induced by the non-Abelian gauge potential.Topological Lifshitz transitions are determined by topologies of Fermi surfaces in the momentum space.Fermi surface consists of N=8 Dirac points atπ-flux point instead of N=4 in the trivial Abelian regimes.A local winding number is defined to classify the universality class of the gapless excitations.We also obtain the phase diagram of gauge fluxes by solving the secular equation.Furthermore,the novel edge states of biased bilayer nanoribbon with gauge fluxes are also investigated.
文摘Based on the SU(3) simple group model , we study the spin correction of the top quark pair production at the high energy linear e+e- collider (ILC) with a center-of-mass energy =800GeV. Our numerical results show that the gauge boson ZH exchange generates very small corrections to the spin correction observable in all the parameter space, which can not be detected in the future ILC experiments.
基金supported by National Science Foundation of China。
文摘Monte Carlo(M-C)measurements of the SU(3)xSU(3)chiral model defined on a N×N 2-dimensional(2-D)random lattice are presented.Calculations are made of energy,specific heat and order parameter per spin on the 10×10,12×12 and 16×16 lattics.It is shown that the system enters a crossover region at β=4.75±0.10,but no evidences of phase transition are obtained.It is found that our results are consistent with that of the 4-D gauge theory and the 2-D chiral model on the regular lattice.
基金supported in part by a grant from Henan Institute of Science and Technology under Grant No.06040
文摘In the SU（3） simple group model, the new neutral gauge boson Z＇ couples to pairs of SM fermions with couplings fixed in terms of the SM gauge couplings and depending only on the choice of the fermion embedding. In this paper, we calculate the contributions of this new particle to the processes e^＋e^-→l^＋l^-, bb^-, and cc^- and study the possibility of detecting this new particle via these processes in the future high-energy linear e^＋e^- collider（LC） experiments with √s= 500 GeV and ￡int= 340 fb^-1. We find that the new gauge boson Z＇ is most sensitive to the process e^＋e^-→b^＋b^-. As long as Mz,≤2 TeV , the absolute values of the relative correction parameter are larger than 5%. We calculate the forward-backward asymmetries and left-right asymmetries for the process e^＋e^-→c^＋c^-, with both the universal and anomaly-free fermion embeddings. Bounds on Z＇ masses are also estimated within 95% confidence level.
文摘Fermion particle pair production in strong SU（2）-gauge chromoelectric fields is studied using the Boltzmann-Vlasov equation in a classical way. The existence of a preproduction process in a classical description is shown using the distribution evolution of non-Abelian particle production. It is interesting to find that the distribution of the particle number density is centered on two islands and shows a split on the color charge sphere as it evolves, ultimately reaching a steady state that is related to the amplitude and variation of the field.
