Regular Article - Theoretical Physics
Exploring the hyperchargeless Higgs triplet model up to the Planck scale
Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore, 453 552, India
Accepted: 26 March 2018
Published online: 26 April 2018
We examine an extension of the SM Higgs sector by a Higgs triplet taking into consideration the discovery of a Higgs-like particle at the LHC with mass around 125 GeV. We evaluate the bounds on the scalar potential through the unitarity of the scattering matrix. Considering the cases with and without -symmetry of the extra triplet, we derive constraints on the parameter space. We identify the region of the parameter space that corresponds to the stability and metastability of the electroweak vacuum. We also show that at large field values the scalar potential of this model is suitable to explain inflation.
© The Author(s), 2018