Radiative corrections to neutrino mass matrix in the Standard Model and beyond
نویسندگان
چکیده
منابع مشابه
Radiative corrections to neutrino mass matrix in the Standard Model and beyond
We study the effect of radiative corrections on the structure of neutrino mass matrix. We analyze the renormalization of the matrix from the electroweak scale mZ to the scale m0 at which the effective operator that gives masses to neutrinos is generated. Apart from Standard Model and MSSM, non-standard extensions of SM are considered at a scale mX intermediate between mZ and m0. We find that th...
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Unlike neutrino masses, the ratios of neutrino masses can be predicted by up-quark seesaw models using the known quark masses and including radiative corrections, with some restrictive assumptions. The uncertainties in these ratios can be reduced to three: the type of seesaw (quadratic, linear, etc.), the top quark mass, and the Landau-triviality value of the top quark mass. The inconclusive bu...
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The cross-section for γγ → tt̄ with arbitrary polarized photons is calculated within the electroweak Standard Model including the complete virtual and soft-photonic O(α) corrections. We present a detailed numerical discussion of the radiative corrections with particular emphasis on the purely weak corrections. These are usually of the order of 1–10% for energies up to 1 TeV. For unpolarized or e...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2003
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2003/02/004