Ke-Long Zhang

activity

20192026

Z_{c} (3900)

from lattice QCD

11 citations · 47 across the 9 of their papers we have counts for

collaborators

9 papers

hep-lat2026

Lattice determination of the neutrino background for $J / ψ \to γ + invisible$

Yu Meng, Ning Li, Chuan Liu +3

Searching for dark matter is a primary goal of modern astronomy and particle physics. Invisible decays of heavy quarkonia are particularly promising for probing light dark matter,…

hep-lat2025

Form factors of the $D_{s} \to ϕ ℓ ν_{ℓ}$ semileptonic decay with (2+1)-flavor lattice QCD

Gaofeng Fan, Yu Meng, Chuan Liu +5

We present a systematic lattice calculation of the vector and axial vector form factors $V$ and $A_{i} (i = 0, 1, 2)$ for the $D_{s} \to ϕ ℓ ν_{ℓ}$ semileptonic decay using (2+1)-flavor…

hep-lat2025

Study of the $D_{s} \to ϕ ℓ ν_{ℓ}$ semileptonic decay with (2+1)-flavor lattice QCD

Gaofeng Fan, Yu Meng, Chuan Liu +5

We present a systematic lattice calculation of the $D_{s} \to ϕ ℓ ν_{ℓ}$ semileptonic decay using (2+1)-flavor Wilson-clover fermion configurations generated by the CLQCD collabor…

hep-lat2024★ 10 cited

First lattice QCD calculation of $J / ψ$ semileptonic decay containing $D$ and $D_{s}$ particles

Yu Meng, Jin-Long Dang, Chuan Liu +4

We perform the first lattice calculation on the semileptonic decay of $J / ψ$ using the (2+1)-flavor Wilson-clover gauge ensembles generated by CLQCD collaboration. Three gauge ensem…

hep-lat2024

Lattice QCD calculation of the $D_{s}^{*}$ radiative decay with (2+1)-flavor Wilson-clover ensembles

Yu Meng, Jin-Long Dang, Chuan Liu +4

We perform a lattice calculation on the radiative decay of $D_{s}^{*}$ using the (2+1)-flavor Wilson-clover gauge ensembles generated by CLQCD collaboration. A method allowing us to ca…

hep-lat2020★ 11 cited

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★ 9 cited

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★ 11 cited

Towards the understanding of $Z_{c} (3900)$ from lattice QCD

Chuan Liu, Liuming Liu, Ke-Long Zhang

Within the framework of three-channel Ross-Shaw effective range theory, we derive the constraints among different parameters of the theory in the case of a narrow resonance close t…

hep-lat2019★ 6 cited

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…

Lattice determination of the neutrino background for J/ψ→γ+invisible

Form factors of the Ds​→ϕℓνℓ​ semileptonic decay with (2+1)-flavor lattice QCD

Study of the Ds​→ϕℓνℓ​ semileptonic decay with (2+1)-flavor lattice QCD

First lattice QCD calculation of J/ψ semileptonic decay containing D and Ds​ particles

Lattice QCD calculation of the Ds∗​ radiative decay with (2+1)-flavor Wilson-clover ensembles

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