Fermion propagator diagonalization and eigenvalue problem
arXiv:2109.06470 · doi:10.1142/S0217732322500845
Abstract
We discuss diagonalization of propagator for mixing fermions system based on the eigenvalue problem. The similarity transformation converting matrix propagator into diagonal form is obtained. The suggested diagonalization has simple algebraic properties for on-shell fermions and can be used in renormalization of fermion mixing matrix.
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