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T: Fachverband Teilchenphysik

T 22: Neutrinophysik (Theorie) II

T 22.3: Vortrag

Dienstag, 16. März 2010, 17:15–17:30, HG XV

Inverse seesaw mechanism in low-scale minimal trinification — •Christophe Cauet¹, Heinrich Päs¹, and Sören Wiesenfeldt² — ¹Institut für Physik, TU Dortmund, 44221 Dortmund, Germany — ²Helmholtz Gemeinschaft, Anna-Louisa-Karsch-Straße 2, 10178 Berlin, Germany

We present a variation of the minimal [SU(3)]³×Z₃ trinification model with a low-scale mechanism for neutrino mass generation.

This is useful in scenarios where loop induced masses are supressed above some cut-off scale or high scales are absent in the theory in the first place, such as supersymmetry, extra dimensions, models implementing a large number of standard model copies or being motivated by AdS/CFT. For this purpose an inverse seesaw mechanism is specified, allowing the generation of light neutrino masses via a radiative seesaw with O(10⁵−10⁶ GeV) loop contributions. It is remarkable that the parameter regions remaining allowed after requiring small neutrino mass generation in the inverse seesaw mechanism, also prevent fast proton decays.