Rare decay K+ →π+ ν ν̄ at the next-to-next-to-leading order m QCD

We calculate the charm quark contribution to the rare decay K+ →π+ ν ν̄ in the next-to-next-to-leading order of QCD. This new contribution reduces the theoretical uncertainty in the relevant parameter P c from ± 10.1% down to ± 2.4%, corresponding to scale uncertainties of ± 1.3%, ± 1.0%, ± 0.006, a...

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Xehetasun bibliografikoak
Egile Nagusiak: Buras, A, Gorbahn, M, Haisch, U, Nierste, U
Formatua: Journal article
Hizkuntza:English
Argitaratua: 2005