Basis invariant measure of CP-violation and renormalization
| Autor: | Andreas Hohenegger, Alexander Kartavtsev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Mathematics and natural science: 400::Physics: 430 [VDP] Nuclear and High Energy Physics Toy model Basis (linear algebra) FOS: Physical sciences Renormalization High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Effective lagrangian fysikk lcsh:QC770-798 CP violation lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Invariant measure License Mathematical physics |
| Zdroj: | 476–488 Nuclear Physics B Nuclear Physics B, Vol 899, Iss C, Pp 476-488 (2015) |
| Popis: | We analyze, in the context of a simple toy model, for which renormalization schemes the CP-properties of bare Lagrangian and its finite part coincide. We show that this is the case for the minimal subtraction and on-shell schemes. The CP-properties of the theory can then be characterized by CP-odd basis invariants expressed in terms of renormalized masses and couplings. For the minimal subtraction scheme we furthermore show that in CP-conserving theories the CP-odd basis invariants are zero at any scale but are not renormalization group invariant in CP-violating ones. Comment: 5 pages |
| Databáze: | OpenAIRE |
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