Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff
Abstract We study the scalar triplet extension of the standard model with a low cutoff, preventing large corrections to the quadratic masses that would otherwise worsen the hierarchy problem. We explore the reach of LISA to test the parameter space region of the scalar potential (not yet excluded by...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-02-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-6655-1 |
| _version_ | 1818037851682504704 |
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| author | Mikael Chala Maria Ramos Michael Spannowsky |
| author_facet | Mikael Chala Maria Ramos Michael Spannowsky |
| author_sort | Mikael Chala |
| collection | DOAJ |
| description | Abstract We study the scalar triplet extension of the standard model with a low cutoff, preventing large corrections to the quadratic masses that would otherwise worsen the hierarchy problem. We explore the reach of LISA to test the parameter space region of the scalar potential (not yet excluded by Higgs to diphoton measurements) in which the electroweak phase transition is strongly first-order and produces sizeable gravitational waves. We also demonstrate that the collider phenomenology of the model is drastically different from its renormalizable counterpart. We study the reach of the LHC in ongoing searches and project bounds for the HL-LHC. Likewise, we develop a dedicated analysis to test the key but still unexplored signature of pair-production of charged scalars decaying to third-generation quarks: $$pp\rightarrow t\overline{b} (\overline{t}b), b\overline{b}$$ pp→tb¯(t¯b),bb¯ . These results apply straightforwardly to other extensions of the Higgs sector such as the 2HDM/MSSM. |
| first_indexed | 2024-12-10T07:33:25Z |
| format | Article |
| id | doaj.art-d8cbf8f6788a42a183e8c2002d129007 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-10T07:33:25Z |
| publishDate | 2019-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-d8cbf8f6788a42a183e8c2002d1290072022-12-22T01:57:29ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-02-0179211210.1140/epjc/s10052-019-6655-1Gravitational wave and collider probes of a triplet Higgs sector with a low cutoffMikael Chala0Maria Ramos1Michael Spannowsky2Institute of Particle Physics Phenomenology, Physics Department, Durham UniversityLaboratório de Instrumentação e Física Experimental de Partículas, Departamento de Física da Universidade do Minho, Campus de GualtarInstitute of Particle Physics Phenomenology, Physics Department, Durham UniversityAbstract We study the scalar triplet extension of the standard model with a low cutoff, preventing large corrections to the quadratic masses that would otherwise worsen the hierarchy problem. We explore the reach of LISA to test the parameter space region of the scalar potential (not yet excluded by Higgs to diphoton measurements) in which the electroweak phase transition is strongly first-order and produces sizeable gravitational waves. We also demonstrate that the collider phenomenology of the model is drastically different from its renormalizable counterpart. We study the reach of the LHC in ongoing searches and project bounds for the HL-LHC. Likewise, we develop a dedicated analysis to test the key but still unexplored signature of pair-production of charged scalars decaying to third-generation quarks: $$pp\rightarrow t\overline{b} (\overline{t}b), b\overline{b}$$ pp→tb¯(t¯b),bb¯ . These results apply straightforwardly to other extensions of the Higgs sector such as the 2HDM/MSSM.http://link.springer.com/article/10.1140/epjc/s10052-019-6655-1 |
| spellingShingle | Mikael Chala Maria Ramos Michael Spannowsky Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff European Physical Journal C: Particles and Fields |
| title | Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff |
| title_full | Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff |
| title_fullStr | Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff |
| title_full_unstemmed | Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff |
| title_short | Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff |
| title_sort | gravitational wave and collider probes of a triplet higgs sector with a low cutoff |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-6655-1 |
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