arXiv subjects

Yi-Bing Ding

Publications and source records attributed to Yi-Bing Ding.

22 records · Page 2Linked to original sources

arXiv1999

Further Study On U(1) Gauge Invariance Restoration

To further investigate the applicability of the projection scheme for eliminating the unphysical divergence $s/m_e^2$ due to U(1) gauge invariance violation, we study the process $e^-+W^+\to e^-+\bar t+b$ which possesses advantages of simplicity and clearness. Our study indicates that the projection scheme can indeed eliminate the unphysical divergence $s/m_e^2$ caused by the U(1) gauge invariance violation and the scheme can apply to very high energy region.

hep-ph↗

arXiv1999

Singularity in Potential, Perturbation and Variational Methods

In this work, we carefully study the energy eigen-values and splitting of heavy quarkonia as there exist $1/r^3$ and $δ^3(\vec r)$ singular terms in the potential which make a direct numerical solution of the Schrödinger equation impossible. We compare the results obtained in terms of perturbation and variational methods with various treatments.

hep-ph↗

arXiv1998

Variational Estimation of the Wave Function at Origin for Heavy Quarkonium

The wave function at the origin (WFO) is an important quantity in studying many physical problems concerning heavy quarkonia. However, when one used the variational method with fewer parameters, in general, the deviation of resultant WFO from the "accurate" solution was not well estimated. In this paper, we discuss this issue by employing several potential forms and trial wave functions in detail and study the relation between WFO and the reduced mass.

hep-ph↗

arXiv1995

On the observation of $e^+e^-\to b \bar{b}Z^0$ at LEP II with two Higgs doublets

We study possible observational effects of the two Higgs doublets in the $e^+e^- \to b \bar{b} Z^0$ at the LEP II energy. We have found that the observational values can be obviously different from that predicted by the minimal Standard Model (MSM), but the results depend on the parameters of the extended model. The possibilities of the observation are discussed in some details.

hep-ph↗