We analyse the influence of continuum corrections over the quantum chromodynamics sum rule for the 1--three-gluon conserved current.The mass of the 1--vector glueball is determined to be 2.4GeV.It should be noted that...We analyse the influence of continuum corrections over the quantum chromodynamics sum rule for the 1--three-gluon conserved current.The mass of the 1--vector glueball is determined to be 2.4GeV.It should be noted that this mass value does not sensitively depend on the choice of the combination of the two independent currents.展开更多
A new approach to get relations between the gluon condensates is shown to be utilization of the local Quantum Chromodynamics(QCD)sum rule via method of analytic continuation by duality in cooperation with the QCD low-...A new approach to get relations between the gluon condensates is shown to be utilization of the local Quantum Chromodynamics(QCD)sum rule via method of analytic continuation by duality in cooperation with the QCD low-energy theorem.展开更多
A compatibility between the proton,neutron and deuteron spin experimental data,based on a combined analysis from all available informations,and the improved Ellis-Jaffe sum rules are verified.The spin structure of pro...A compatibility between the proton,neutron and deuteron spin experimental data,based on a combined analysis from all available informations,and the improved Ellis-Jaffe sum rules are verified.The spin structure of proton in a ground state is analysed,and the gluon contribution is proven to be very important.展开更多
The properties of the O^(++) scalar gJueball is investigated in the/rameworJt of the quantum chromodyiiamics finite energy sum rules.The mass and width of such glueball are predicted to be 0.62 GeV and 62 MeV respecti...The properties of the O^(++) scalar gJueball is investigated in the/rameworJt of the quantum chromodyiiamics finite energy sum rules.The mass and width of such glueball are predicted to be 0.62 GeV and 62 MeV respectively.The effect of non-vanishing quark masses turns out to be not negligible.展开更多
A more general form of the Bethe Salpater wavefunction for a quark antiquark bound state, in accordance with the spirit of nonrelativistic approximation, is constructed, and the relativistic Salpeter equation is red...A more general form of the Bethe Salpater wavefunction for a quark antiquark bound state, in accordance with the spirit of nonrelativistic approximation, is constructed, and the relativistic Salpeter equation is reduced to two 2×2 matrix equations under an instantaneous approximation, which includes not only the contributions comming from a positive energy state but also ones of a negative energy state, and has no anomalous solution.展开更多
A gauge invariant and Lorentz-irreducible three-gluon conserved vector current is constructed,and the mass of the vector glueball is calculated in the framework of the Quantum Chromodynamics sum rules.
We propose a SU(7)×SU(7) preon model which obeys both the 'tHooft anomaly-matching and decoupling conditions,and contains four generations of leptons and quarks.The mass spectrum of particles is obtained to b...We propose a SU(7)×SU(7) preon model which obeys both the 'tHooft anomaly-matching and decoupling conditions,and contains four generations of leptons and quarks.The mass spectrum of particles is obtained to be consistent' with experiments via three dynamical symmetry breaking steps.展开更多
基金Project partly supported by Institute of Theoretical Physics,Academia Sinica,Beijing,China。
文摘We analyse the influence of continuum corrections over the quantum chromodynamics sum rule for the 1--three-gluon conserved current.The mass of the 1--vector glueball is determined to be 2.4GeV.It should be noted that this mass value does not sensitively depend on the choice of the combination of the two independent currents.
基金Supported by the National Natural Science Foundation of China.
文摘A new approach to get relations between the gluon condensates is shown to be utilization of the local Quantum Chromodynamics(QCD)sum rule via method of analytic continuation by duality in cooperation with the QCD low-energy theorem.
基金Supported by the National Natural Science Foundation of China.
文摘A compatibility between the proton,neutron and deuteron spin experimental data,based on a combined analysis from all available informations,and the improved Ellis-Jaffe sum rules are verified.The spin structure of proton in a ground state is analysed,and the gluon contribution is proven to be very important.
文摘The properties of the O^(++) scalar gJueball is investigated in the/rameworJt of the quantum chromodyiiamics finite energy sum rules.The mass and width of such glueball are predicted to be 0.62 GeV and 62 MeV respectively.The effect of non-vanishing quark masses turns out to be not negligible.
文摘A more general form of the Bethe Salpater wavefunction for a quark antiquark bound state, in accordance with the spirit of nonrelativistic approximation, is constructed, and the relativistic Salpeter equation is reduced to two 2×2 matrix equations under an instantaneous approximation, which includes not only the contributions comming from a positive energy state but also ones of a negative energy state, and has no anomalous solution.
基金supported by the Science Fund of the Chinese Academy of Sciences。
文摘A gauge invariant and Lorentz-irreducible three-gluon conserved vector current is constructed,and the mass of the vector glueball is calculated in the framework of the Quantum Chromodynamics sum rules.
基金Project supported by the Science Fund of the Chinese Academy of Sciences.
文摘We propose a SU(7)×SU(7) preon model which obeys both the 'tHooft anomaly-matching and decoupling conditions,and contains four generations of leptons and quarks.The mass spectrum of particles is obtained to be consistent' with experiments via three dynamical symmetry breaking steps.
