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hep-ph2015
Aspects of the Flavour Expansion Theorem
M. Paraskevas
The Flavour Expansion Theorem, which has been recently proposed as a more general and elegant algebraic method, for the derivation of the commonly used Mass Insertion Approximation…
hep-ph2015★ 7 cited
Mass Insertions vs. Mass Eigenstates calculations in Flavour Physics
A. Dedes, M. Paraskevas, J. Rosiek +2
We present and prove a theorem of matrix analysis, the Flavour Expansion Theorem (or FET), according to which, an analytic function of a Hermitian matrix can be expanded polynomial…