173 citations · 1.3k across the 23 of their papers we have counts for
Showing 1998Show all
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hep-ph1998★ 59 cited
Matrix Elements of Electroweak Penguin Operators in the 1/Nc Expansion
M. Knecht, S. Peris, E. de Rafael
It is shown that the K -> pi pi matrix elements of the four-quark operator Q_7, generated by the electroweak penguin-like diagrams of the Standard Model, can be calculated to first…
hep-ph1998★ 74 cited
The electroweak pi^+ - pi^0 mass difference and weak matrix elements in the 1/Nc expansion
M. Knecht, S. Peris, E. de Rafael
The pi^+ - pi^0 mass difference generated by the electroweak interactions of the Standard Model is expressed, to lowest order in the chiral expansion and to leading order in alpha,…
hep-ph1998★ 173 cited
Matching Long and Short Distances in Large-Nc QCD
S. Peris, M. Perrottet, E. de Rafael
It is shown, with the example of the experimentally known Adler function, that there is no matching in the intermediate region between the two asymptotic regimes described by pertu…