62 citations · 130 across the 12 of their papers we have counts for
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Puzzle of W Leptonic Decay Branching Fractions and Gauge Model of Generation Nonuniversality
Xiao-Yuan Li, Ernest Ma
Lepton generation universality holds very well in Z decays, but appears to be violated in recent LEP data of W leptonic decay branching fractions. If this trend persists, a consist…
Quark-Lepton Nonuniversality
Xiao-Yuan Li, Ernest Ma
There is new experimental evidence which may be interpreted as a small departure from quark-lepton universality. We propose to understand this as the result of a hierarchy of mass…
Gauge Model of Quark-Lepton Nonuniversality
Xiao-Yuan Li, Ernest Ma
We propose a gauge model where quark-lepton universality is an accidental symmetry which is only approximate, in analogy to the well-accepted notion that strong isospin is accident…
Photon-3-Pion And Pion-2-Photon Form Factors From Dynamical Constituent Quarks
Xiaoyuan Li, Yi Liao
We study the form factors of the low energy anomalous pion-2-photon and photon-3-pion processes in the nonlocal chiral quark model which incorporates the momentum dependence of the…
Non-unitarity of CKM matrix from the vector singlet quark mixing and neutron electric dipole moment
Yi Liao, Xiaoyuan Li
In the standard model (SM) the lowest order contribution to the quark electric dipole moment (EDM) occurs at the three loop level. We show that the non-unitarity of the CKM matrix…
Enhanced contribution to quark and neutron electric dipole moments with small mixing of right-handed currents and CKM CP violation
Yi Liao, Xiaoyuan Li
We study the light quark and the neutron electric dipole moments (EDMs) under the assumptions that the CP source is still in the usual CKM matrix and that there is a small mixing o…
Vanishing Contribution to Quark Electric Dipole Moment in the 2HD Model with CKM CP Violation
Yi Liao, Xiaoyuan Li
In the standard model (SM) of electroweak interactions, CP noninvariance arises from the nonzero phase in the CKM matrix. Its contribution to the quark electric dipole moment (EDM)…
Tree-Level Nondecoupling and the Supersymmetric Higgs Sector
Xiao-yuan Li, Ernest Ma
Because of the existence of cubic scalar couplings, there are in general nondecoupling effects at tree level in the scalar sector of any theory with two or more very different mass…
Contributions to
Yi Liao, Xiaoyuan Li
The rare decay is a promising detection channel for an intermediate mass Higgs boson. We compute its two-loop correction in the standard model and find…
Axial Vector Couplings of the Nucleon in Chiral Quark Model Incorporating Anomaly Effects
Xiaoyuan Li, Yi Liao
Renormalization of the axial vector currents due to Goldstone loops is studied in a simple extension of Manohar - Georgi chiral quark model which incorporates anomaly effe…
Renormalization of the Electroweak Theory in the Background Field Method
Xiaoyuan Li, Yi Liao
The applicability of the background field method in spontaneously broken gauge theories is examined with new features emphasized. An explicit one loop analysis in the electroweak t…
Proof of the Equivalence Theorem in the Chiral Lagrangian Formalism
Hong-Jian He, Yu-Ping Kuang, Xiaoyuan Li
A general proof of the equivalence theorem in electroweak theories with the symmetry breaking sector described by the chiral Lagrangian is given in the gauge by means of the…