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arxiv: hep-ph/0108005 · v2 · submitted 2001-08-01 · ✦ hep-ph

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Neutrino Mass Operator Renormalization Revisited

Stefan Antusch , Manuel Drees , J\"orn Kersten , Manfred Lindner , Michael Ratz
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classification ✦ hep-ph
keywords renormalizationmassoperatoranglesbeta-functionscalculatingcalculationscorresponds
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We re-derive the renormalization group equation for the effective coupling of the dimension five operator which corresponds to a Majorana mass matrix for the Standard Model neutrinos. We find a result which differs somewhat from earlier calculations, leading to modifications in the evolution of leptonic mixing angles and CP phases. We also present a general method for calculating beta-functions from counterterms in MS-like renormalization schemes, which works for tensorial quantities.

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