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Supersymmetric type-III seesaw mechanism: Lepton flavor violation and LHC phenomenology

AutorHirsch, Martin ; Porod, Werner ; Weiss, Christian H.; Staub, Florian
Palabras claveGrand unified theories
Right-handed neutrinos
Model higgs-boson
Standard model
Non-conservation
Root-S=7 tev
Decays
Masses
Unification
Electroweak
Fecha de publicación23-ene-2013
EditorAmerican Physical Society
CitaciónPhysical Review - Section D - Particles and Fields 87 (1): 013010 - 12 (2013)
ResumenWe study a supersymmetric version of the type-III seesaw mechanism considering two variants of the model: a minimal version for explaining neutrino data with only two copies of 24 superfields and a model with three generations of 24-plets. The latter predicts, in general, rates for mu -> e gamma inconsistent with experimental data. However, this bound can be evaded if certain special conditions within the neutrino sector are fulfilled. In the case of two 24-plets, lepton flavor violation constraints can be satisfied much more easily. After specifying the corresponding regions in the minimal supergravity parameter space, we show that under favorable conditions one can test the corresponding flavor structures in the leptonic sector at the LHC. For this we perform Monte Carlo studies for the signals, also taking into account the supersymmetry background. We find that it is only of minor importance for the scenarios studied here.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.87.013010
URIhttp://hdl.handle.net/10261/125599
DOI10.1103/PhysRevD.87.013010
ISSN1550-7998
E-ISSN1550-2368
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