Electro-Weak Symmetry Breaking (EWSB) in the Triplet extension of The Standard Model

Kumar, Arjun and Bandyopadhyay, Priyotosh (2018) Electro-Weak Symmetry Breaking (EWSB) in the Triplet extension of The Standard Model. Masters thesis, Indian Institute of Technology, Hyderabad.

Text
Thesis_Msc_PH_3903.pdf - Submitted Version
Restricted to Repository staff only until June 2028.
Download (25MB) | Request a copy

Abstract

Model(SM) and then look for physics beyond Standard Model. SM as the gauge theory and Electro-weak symmetry breaking in SM is discussed thoroughly. We investigate the extension of the Standard Model (SM) with hypercharge zero( Y=0 ) Triplet in the scalar sector,i.e the Higgs Triplet Model (HTM) (SM Doublet + Y=0 Real Triplet). The � parameter highly constrains the model at tree level. Another feature of this extension is that the triplet field does not couple to fermions, which makes it hard to produce them at the colliders. The Dark matter in Inert Triplet Model (ITM), i.e. when triplet field does not take part in electroweak symmetry breaking is also discussed, the neutral component of triplet field can be a potential candidate for Dark matter when radiative corrections are taken into account. We also address the issue of vacuum stability of the Higgs potential in the Standard Model and the Higgs Triplet Model. We studied the bounds on Higgs mass coming from Triviality, Vacuum stability and also investigated the perturbative scale of the theory in both Standard Model and Higgs Triplet Model. Extending the scalar sector also enhances the stability of the potential. The parameter space of HTM is constrained by the theoretical considerations like vacuum stability, perturbativity etc. KEYWORDS: Beyond Standard Model, Dark matter,Stability

[error in script]

IITH Creators: