Perturbativity and mass scales in the minimal left-right symmetric model (CROSBI ID 237022)
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Maiezza, Alessio ; Nemevšek, Miha ; Nesti, Fabrizio
engleski
Perturbativity and mass scales in the minimal left-right symmetric model
The scalar sector of the minimal left-right model at TeV scale is revisited in light of the large quartic coupling needed for a heavy flavor-changing scalar. The stability and perturbativity of the effective potential is discussed and merged with constraints from low-energy processes. Thus, the perturbative level of the left-right scale is sharpened. Lower limits on the triplet scalars are also derived: The left-handed triplet is bounded by oblique parameters, while the doubly charged right-handed component is limited by the h→γγ, Zγ decays. Current constraints disfavor their detection as long as WR is within the reach of the LHC.
Particle physics, Collider, Physics beyond the standard model, Left-Right symmetry
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