422 citations · 2.7k across the 67 of their papers we have counts for
5 papers · 1 filter
Including electromagnetism in decay calculations
Norman Christ, Xu Feng
Because of the small size of the ratio A_2/A_0 of the I=2 to I=0 K -> pipi decay amplitudes (the Delta I=1/2 rule) the effects of electromagnetism on A_2 may be a factor of 20 larg…
Recent progress in applying lattice QCD to kaon physics
Xu Feng
Standard lattice calculations in kaon physics are based on the evaluation of matrix elements of local operators between two single-hadron states or a single-hadron state and the va…
Novel Soft-Pion Theorem for Long-Range Nuclear Parity Violation
Xu Feng, Feng-Kun Guo, Chien-Yeah Seng
The parity-odd effect in the Standard Model weak neutral current reveals itself in the long-range parity-violating nuclear potential generated by the pion exchanges in the c…
Chiral behavior of decay form factors in lattice QCD with exact chiral symmetry
JLQCD Collaboration, S. Aoki, G. Cossu +6
We calculate the form factors of the semileptonic decays in three-flavor lattice QCD, and study their chiral behavior as a function of the momentum transfer and the Na…
Exploratory Lattice QCD Study of the Rare Kaon Decay
Ziyuan Bai, Norman H. Christ, Xu Feng +3
We report a first, complete lattice QCD calculation of the long-distance contribution to the decay within the standard model. This is a second-order weak process…