Charm-Quark Contribution to K_L -> mu^+ mu^- at Next-to-Next-to-Leading

We calculate the charm-quark contribution to the decay K_L -> mu^+ mu^- in next-to-next-to-leading order of QCD. This new contribution reduces the theoretical uncertainty in the relevant parameter P_c from +/-22% down to +/-7%, corresponding to scale uncertainties of +/-3% and +/-6% in the sh...

詳細記述

書誌詳細
主要な著者: Gorbahn, M, Haisch, U
フォーマット: Journal article
出版事項: 2006