Yu Meng

collaborators

3 papers

hep-lat2020

Ward Identity of the Vector Current and the Decay Rate of $η_{c} \to γ γ$ in Lattice QCD

Chuan Liu, Yu Meng, Ke-Long Zhang

Using a recently proposed method arXiv:1910.11597 (Yu Meng et al.), we study the two-photon decay rate of $η_{c}$ using two $N_{f} = 2$ twisted mass gauge ensembles with lattice spacings…

hep-lat2020

A Lattice Study of the Two-photon Decay Widths for Scalar and Pseudo-scalar Charmonium

Ying Chen, Ming Gong, Ning Li +7

In this exploratory study, two photon decay widths of pseudo-scalar ( $η_{c}$ ) and scalar ( $χ_{c 0}$ ) charmonium are computed using two ensembles of $N_{f} = 2$ twisted mass lattice QCD ga…

hep-lat2019

Three Photon Decay of $J / ψ$ from Lattice QCD

Yu Meng, Chuan Liu, Ke-Long Zhang

Three photon decay rate of $J / ψ$ is studied using two $N_{f} = 2$ twisted mass gauge ensembles with lattice spacings $a ≃ 0.085$ fm (I) and $0.067$ fm(II). Using a new method, only…

Ward Identity of the Vector Current and the Decay Rate of ηc​→γγ in Lattice QCD

A Lattice Study of the Two-photon Decay Widths for Scalar and Pseudo-scalar Charmonium

Three Photon Decay of J/ψ from Lattice QCD

Ward Identity of the Vector Current and the Decay Rate of $η_{c} \to γ γ$ in Lattice QCD

Three Photon Decay of $J / ψ$ from Lattice QCD