Bandyopadhyay, Priyotosh and Dev, P S Bhupal and Jangid, Shilpa and et al, .
(2020)
Vacuum Stability in Inert Higgs Doublet Model with Right-handed Neutrinos.
arXiv.org.
Abstract
We analyze the vacuum stability in the inert Higgs doublet extension of
the Standard Model (SM), augmented by right-handed neutrinos (RHNs) to explain
neutrino masses at tree level by the seesaw mechanism. We make a comparative
study of the high- and low-scale seesaw scenarios and the effect of the Dirac neutrino Yukawa couplings on the stability of the Higgs potential. Bounds on the scalar
quartic couplings and Dirac Yukawa couplings are obtained from vacuum stability
and perturbativity considerations. The regions corresponding to stability, metastability and instability of the electroweak vacuum are identified. These theoretical
constraints give a very predictive parameter space for the couplings and masses of
the new scalars and RHNs which can be tested at the LHC and future colliders. The
lightest non-SM neutral CP-even/odd scalar can be a good dark matter candidate
and the corresponding collider signatures are also predicted for the model.
[error in script]
| IITH Creators: |
| IITH Creators | ORCiD |
|---|
| Bandyopadhyay, Priyotosh | http://orcid.org/0000-0003-0464-5116 |
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| Item Type: |
Article
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| Subjects: |
Physics |
| Divisions: |
Department of Physics |
| Depositing User: |
Team Library
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| Date Deposited: |
13 Jan 2020 11:34 |
| Last Modified: |
13 Jan 2020 11:34 |
| URI: |
http://raiithold.iith.ac.in/id/eprint/7316 |
| Publisher URL: |
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| Related URLs: |
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