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arXiv · hep-ph/9408398

Next-to-leading order short distance QCD corrections to the effective $ΔS = 2$ Hamiltonian, implications for the $K_L$-$K_S$ mass difference

S. Herrlich
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Abstract

We report on the results of a calculation of next-to leading order short distance QCD corrections to the coefficient $η_1$ of the effective $ΔS = 2$ Lagrangian in the standard model and discuss the uncertainties inherent in such a calculation. As a phenomenological application we comment on the contributions of short distance physics to the ${\rm K}_{\rm L}$--${\rm K}_{\rm S}$ mass difference. This report is based on research work done in collaboration with Ulrich Nierste.

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S. Herrlich. 1994-08-31. Next-to-leading order short distance QCD corrections to the effective $ΔS = 2$ Hamiltonian, implications for the $K_L$-$K_S$ mass difference. https://doi.org/10.1016/0920-5632(95)00083-l

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