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Bing An Li

Publications and source records attributed to Bing An Li.

At least 37 records · Page 2Linked to original sources
arXiv2005

Hidden Local Symmetry and Effective Chiral Theory for Vector and Axial-vector Mesons

The Lagrangian of pseudoscalar, vector, and axial-vector mesons is determined by the explicit global chiral symmetry and hidden local chiral symmetry. There are fourteen interacting terms up to the dimension-four of covariant derivatives rather than the usual eleven interacting terms given in literature from hidden local symmetry approach. There are only two independent parameters. The three new terms are important in phenomenology.

hep-ph↗
arXiv2004

Is X(3872) a possible candidate of hybrid meson

The associate productions of X(3872) and J/ψin hadron collisions and flavor independence of hadrons in ee^+\to X(3872)+hadrons and the decays X(3872)\to γ+hadrons are discussed. It is pointed out X(3872)\to J/ψ+σcould be a significant decay channel.

hep-ph↗
arXiv2004

ee^+-->π^0γand form factor of π^0γ^*γ^*

The form factor π^0γ^*γ^* is obtained to the next leading order of derivative expansion of the chiral anomaly and the VMD. As a test the form factor has been used to calculate the cross section of ee^+-->π^0γ. Theory agrees with data.

hep-ph↗
arXiv2003

Invalid Ward-Takahashi identities and broken unitarity of the SM

It is found that in the SM the Ward-Takahashi(WT) identities of the axial-vector currents and the charged vector currents of fermions are invalid after spontaneous symmetry breaking. The spin-0 components of Z and W fields are revealed from the invalidity of these WT identities. The masses of these spin-0 components are at $10^{14}$GeV. They are ghosts. Therefore, unitarity of the SM after spontaneous symmetry breaking is broken at $10^{14}$GeV.

hep-ph↗
arXiv2002

Broken unitarity of the SM and a new theory of EW interactions

It shows that because of the axial-vector coupling and the coupling with fermions of different masses the untarity of the SM is broken at the scale of 10^{14}GeV. A new theory of EW interactions without Higgs is proposed. We obtain M^2_W=g^2 m^2_t/2, M^2_Z=(g^2+g'^2)m^2_t/2, and G_F=1/(2\sqrt{2}m^2_t}.

hep-ph↗
arXiv2002

Current quark mass and g-2 of muon and ee-->ππ

Based on an effective chiral theory of mesons the dependences of $ρ-ω$ mixing and the vertex $ωππ$ on $m_d-m_u$ are found. The form factor of pion agrees with data in both space- and time-like regions. CVC is satisfied. The values of g-2 of muon from $ππ$ channel are calculated in the range of $q^2<1.3^2 GeV^2$.

hep-ph↗
arXiv2000

Prediction of three heavy spin-0 particles in the SM

The axial-vector couplings of the internediate bosons with fermions lead to the prediction of three very heavy spin-0 states in the SM, whose masses are about 10^{14}GeV. If these states on mass shell there are problems of negative probability. A new perturbation theory of the SM is proposed.

hep-ph↗
arXiv2000

K_{l4} decays

An effective theory of large N_{C} QCD of mesons has been used to study six K_{l4} decay modes. It has been found that the matrix elements of the axial-vector current dominate the K_{l4} decays. PCAC is satisfied. A relationship between three form factors of axial-vector current has been found. Non-zero phase shifts are originated in ρ-->ππ. The decay rates are calculated in the chiral limit. In this study there is no adjustable parameter.

hep-ph↗
arXiv1999

Theory of electroweak interactions without spontaneous symmetry breaking

The study of a EW theory without spontaneous symmetry breaking is presented. A new symmetry breaking, axial-vector symmetry breaking, is found. M^{2}_{W}=1/2g^{2}m^{2}_{t}, m^{2}_{Z}=ρm^{2}_{W}/cos^{2} θ, and G_{F}=1/(2\sqrt{2}m^{2}_{t}) are obtained and they agree with data. It has been proved that the theory is renormalizable and unitary.

hep-ph↗
arXiv1998

$τ\toρππν$ decays

Effective chiral theory of mesons is applied to study the four decay modes of $τ\toρππν$. Theoretical values of the branching ratios are in agreement with the data. The theory predicts that the $a_{1}$ resonance plays a dominant role in these decays. There is no new parameter in this study.

hep-ph↗