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Title: CP phases in models with some fermion masses vanishing and/or degenerate
Authors: Del Aguila, Francisco
Zrałek, Marek
Keywords: fermiony; fizyka jądrowa
Issue Date: 1996
Citation: Acta Physica Polonica. B, 1996, no. 4, s. 971-983
Abstract: We count the number of CP breaking phases in models with SU(2)¿ x U(l)y and SU(2)¿x SU(2).rx U(1)b-l electroweak gauge groups and extended matter contents with some fermion masses vanishing and/or degenerate. Quarks and leptons, including Majorana neutrinos, are treated in a similar way. CP violation is characterized in the mass-eigenstate and in the weak-eigenstate bases. Necessary and sufficient conditions for CP conservation, invariant under weak basis redefinitions are also studied in these models. CP violating factors entering in physical observables and only invariant under phase redefinitions are discussed.
ISSN: 0587-4254
Appears in Collections:Artykuły (WNŚiT)

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