Scrutinizing vacuum stability in IDM with Type-III inverse seesaw
Abstract We consider the extension of the Standard Model (SM) with an inert Higgs doublet that also contains two or three sets of SU(2) L triplet fermions with hypercharge zero and analyze the stability of electroweak vacuum for the scenarios. The model represents a Type-III inverse seesaw mechanism...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-02-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP02(2021)075 |
| _version_ | 1819055001188696064 |
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| author | Priyotosh Bandyopadhyay Shilpa Jangid Manimala Mitra |
| author_facet | Priyotosh Bandyopadhyay Shilpa Jangid Manimala Mitra |
| author_sort | Priyotosh Bandyopadhyay |
| collection | DOAJ |
| description | Abstract We consider the extension of the Standard Model (SM) with an inert Higgs doublet that also contains two or three sets of SU(2) L triplet fermions with hypercharge zero and analyze the stability of electroweak vacuum for the scenarios. The model represents a Type-III inverse seesaw mechanism for neutrino mass generation with a Dark matter candidate. An effective potential approach calculation with two-loop beta function have been carried out in deciding the fate of the electroweak vacuum. Weak gauge coupling g 2 shows a different behaviour as compared to the Standard Model. The modified running of g 2, along with the Higgs quartic coupling and Type-III Yukawa couplings become crucial in determining the stability of electroweak vacuum. The interplay between two and three generations of such triplet fermions reveals that extensions with two generations is favoured if we aspire for Planck scale stability. Bounds on the Higgs quartic couplings, Type-III Yukawa and number of triplet fermion generations are drawn for different mass scale of Type-III fermions. The phenomenologies of inert doublet and Type-III fermions at the LHC and other experiments are commented upon. |
| first_indexed | 2024-12-21T13:00:34Z |
| format | Article |
| id | doaj.art-13c4713a1f7e410587cce2946ec4c4c1 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T13:00:34Z |
| publishDate | 2021-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-13c4713a1f7e410587cce2946ec4c4c12022-12-21T19:03:11ZengSpringerOpenJournal of High Energy Physics1029-84792021-02-012021213610.1007/JHEP02(2021)075Scrutinizing vacuum stability in IDM with Type-III inverse seesawPriyotosh Bandyopadhyay0Shilpa Jangid1Manimala Mitra2Indian Institute of Technology HyderabadIndian Institute of Technology HyderabadInstitute of Physics BhubaneswarAbstract We consider the extension of the Standard Model (SM) with an inert Higgs doublet that also contains two or three sets of SU(2) L triplet fermions with hypercharge zero and analyze the stability of electroweak vacuum for the scenarios. The model represents a Type-III inverse seesaw mechanism for neutrino mass generation with a Dark matter candidate. An effective potential approach calculation with two-loop beta function have been carried out in deciding the fate of the electroweak vacuum. Weak gauge coupling g 2 shows a different behaviour as compared to the Standard Model. The modified running of g 2, along with the Higgs quartic coupling and Type-III Yukawa couplings become crucial in determining the stability of electroweak vacuum. The interplay between two and three generations of such triplet fermions reveals that extensions with two generations is favoured if we aspire for Planck scale stability. Bounds on the Higgs quartic couplings, Type-III Yukawa and number of triplet fermion generations are drawn for different mass scale of Type-III fermions. The phenomenologies of inert doublet and Type-III fermions at the LHC and other experiments are commented upon.https://doi.org/10.1007/JHEP02(2021)075Beyond Standard ModelHiggs PhysicsNeutrino Physics |
| spellingShingle | Priyotosh Bandyopadhyay Shilpa Jangid Manimala Mitra Scrutinizing vacuum stability in IDM with Type-III inverse seesaw Journal of High Energy Physics Beyond Standard Model Higgs Physics Neutrino Physics |
| title | Scrutinizing vacuum stability in IDM with Type-III inverse seesaw |
| title_full | Scrutinizing vacuum stability in IDM with Type-III inverse seesaw |
| title_fullStr | Scrutinizing vacuum stability in IDM with Type-III inverse seesaw |
| title_full_unstemmed | Scrutinizing vacuum stability in IDM with Type-III inverse seesaw |
| title_short | Scrutinizing vacuum stability in IDM with Type-III inverse seesaw |
| title_sort | scrutinizing vacuum stability in idm with type iii inverse seesaw |
| topic | Beyond Standard Model Higgs Physics Neutrino Physics |
| url | https://doi.org/10.1007/JHEP02(2021)075 |
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