3 papers
hep-ph2026
Top-Quark Decay at Next-to-Next-to-Next-to-Leading Order in QCD
Long Chen, Xiang Chen, Xin Guan +1
We present the first complete high-precision QCD corrections to the inclusive decay width , the -helicity fractions and semi-inclusive distribut…
hep-ph2025
Determination of the Strong Coupling Constant from Inclusive Semi-leptonic Meson Decays
Yuzhi Che, Long Chen, Jinfei Wu +5
We demonstrate the feasibility of determining the strong coupling constant, , from the inclusive semileptonic decay width of mesons. We express the semileptonic decay…
hep-ph2025
A Procedure g5anchor to Anchor in Feynman Diagrams for the Standard Model
Long Chen
We present a procedure g5anchor to anchor in the definition of a Dirac trace with in Dimensional Regularization (DR) in Feynman diagrams for the Standard Model, based…