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Yu Fusheng

Publications and source records attributed to Yu Fusheng.

2 recordsLinked to original sources

A light charged Higgs boson in two-Higgs doublet model for CDF $Wjj$ anomaly

Motivated by recent anomalous CDF data on $Wjj$ events, we study a possible explanation within the framework of the two-Higgs doublet model. We find that a charged Higgs boson of mass $\sim$ 140 GeV with appropriate couplings can account for the observed excess. In addition, we consider the flavor-changing neutral current effects induced at loop level by the charged Higgs boson on the $B$ meson system to further constrain the model. Our study shows that the like-sign charge asymmetry $A_{s\ell}^b$ can be of ${\cal O}(10^{-3})$ in this scenario.

hep-ph

Two body hadronic $D$ decays

We analyze the decay modes of $D/D_s\to PP,PV$ on the basis of a hybrid method with the generalized factorization approach for emission diagrams and the pole dominance model for the annihilation type contributions. Our results of PV final states are better than the previous method, while the results of PP final states are comparable with previous diagrammatic approach.

hep-ph