arXiv subjects

Mingfei Duan

Publications and source records attributed to Mingfei Duan.

2 recordsLinked to original sources

arXiv2021

Study of $C$ parity violating and strangeness changing $J/ψ$ ${\to}$ $PP$ weak decays

The $J/ψ$ weak decays are rare but possible within the standard model of elementary particles. Inspired by the potential prospects at the future intensity frontier, the $C$ parity violating $J/ψ$ ${\to}$ $πη^{({\prime})}$, $ηη^{\prime}$ decays and the strangeness changing $J/ψ$ ${\to}$ $πK$, $Kη^{({\prime})}$ decays are studied with the perturbative QCD approach. It is found that the $J/ψ$ ${\to}$ $ηη^{\prime}$ decays have relatively large branching ratios, about the order of $10^{-11}$, which might be within the measurement capability and sensitivity of the future STCF experiment.

hep-ph↗

arXiv2021

Study of the $Υ(1S)$ ${\to}$ $DP$ decays

Inspired by the potential prospects of high-luminosity dedicated colliders and the high enthusiasms in searching for new physics in the flavor sector at the intensity frontier, the $Υ(1S)$ ${\to}$ $D^{-}π^{+}$, $\overline{D}^{0}π^{0}$ and $D_{s}^{-}K^{+}$ weak decays are studied with the perturbative QCD approach. It is found within the standard model that the branching ratios for the concerned processes are tiny, about ${\cal O}(10^{-18})$, and far beyond the detective ability of current experiments unless there exists some significant enhancements from a noval interaction.

hep-ph↗