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hep-lat2024
Two-photon contribution to the decay amplitude from a GeV lattice
En-Hung Chao, Ceran Hu
We present a lattice-QCD calculation of the long-distance two-photon contribution to the decay amplitude of a long-lived kaon to a pair of muons on a physical-pion-…
hep-ph2024
Calculating the two-photon exchange contribution to decay
En-Hung Chao, Norman Christ
We present a theoretical framework within which both the real and imaginary parts of the complex, two-photon exchange amplitude contributing to decay can be…
hep-lat2024
Progress on from Lattice QCD
En-Hung Chao
In this contribution, we present recent progress from the RBC/UKQCD collaboration on the first calculation of the long-distance two-photon contribution to the decay amplitude of a…