4 papers
Ward Identity of the Vector Current and the Decay Rate of 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 using two twisted mass gauge ensembles with lattice spacings…
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 () and scalar () charmonium are computed using two ensembles of twisted mass lattice QCD ga…
Towards the understanding of 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…
Three Photon Decay of from Lattice QCD
Yu Meng, Chuan Liu, Ke-Long Zhang
Three photon decay rate of is studied using two twisted mass gauge ensembles with lattice spacings fm (I) and fm(II). Using a new method, only…