107 citations · 195 across the 8 of their papers we have counts for
8 papers
Systematic study of one-loop realizations of long-range decay operators
Ping-Tao Chen, Gui-Jun Ding, Chang-Yuan Yao
We study the systematical one-loop decomposition of the dimension-7 long-range decay operators. We find that there are 3 genuine one-loop topologies and 8 diagrams. The proc…
Decomposition of short-range decay operators at one-loop level
Ping-Tao Chen, Gui-Jun Ding, Chang-Yuan Yao
We perform a systematical study of the dimension-9 short-range decay operators at one-loop level. There are only six genuine topologies which generate eight diagrams, and th…
Flavor mixing and CP violation from the interplay of modular group and gCP
Bu-Yao Qu, Xiang-Gan Liu, Ping-Tao Chen +1
We have performed a systematical analysis of lepton and quark masses models based on modular symmetry with gCP symmetry. We have considered both cases that neutrinos…
A New Littlest Seesaw Model
Ping-Tao Chen, Gui-Jun Ding, Stephen F. King +1
We propose and discuss a new Littlest Seesaw model, realised in the tri-direct CP approach, in which the couplings of the two right-handed neutrinos to the lepton doublets are prop…
Heavy Quarks on Anisotropic Lattices: The Charmonium Spectrum
Ping Chen
We present results for the mass spectrum of mesons simulated on anisotropic lattices where the temporal spacing is only half of the spatial spacing . The lat…
Toward the Chiral Limit of QCD: Quenched and Dynamical Domain Wall Fermions
Ping Chen, Norman Christ, Geoerge Fleming +7
A serious difficulty in conventional lattice field theory calculations is the coupling between the chiral and continuum limits. With both staggered and Wilson fermions, the chiral…
The domain wall fermion chiral condensate in quenched QCD
Ping Chen, Norman H. Christ, George R. Fleming +7
We examine the chiral limit of domain wall fermions in quenched QCD. One expects that in a quenched simulation, exact fermion zero modes will give a divergent, 1/m behavior in the…
QCDSP - A status report
QCDSP Collaboration, Dong Chen, Ping Chen +16
The QCDSP machine at Columbia University has grown to 2,048 nodes achieving a peak speed of 100 Gigaflops. Software for quenched and Hybrid Monte Carlo (HMC) evolution schemes has…