Composite dynamics in the early Universe
Abstract We study the occurrence of a strong first-order electroweak phase transition in composite Higgs models. Minimal constructions realising this scenario are based on the coset SO(6)/SO(5) which delivers an extended Higgs sector with an additional scalar. In such models, a two-step phase transi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2019)149 |
| _version_ | 1818589682763563008 |
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| author | Stefania De Curtis Luigi Delle Rose Giuliano Panico |
| author_facet | Stefania De Curtis Luigi Delle Rose Giuliano Panico |
| author_sort | Stefania De Curtis |
| collection | DOAJ |
| description | Abstract We study the occurrence of a strong first-order electroweak phase transition in composite Higgs models. Minimal constructions realising this scenario are based on the coset SO(6)/SO(5) which delivers an extended Higgs sector with an additional scalar. In such models, a two-step phase transition can be obtained with the scalar singlet acquiring a vacuum expectation value at intermediate temperatures. A bonus of the Nambu-Goldstone boson nature of the scalar-sector dynamics is the presence of non-renormalisable Higgs in- teractions that can trigger additional sources of CP violation needed to realise baryogenesis at the electroweak scale. Another interesting aspect of this scenario is the generation of gravitational wave signatures that can be observed at future space-based interferometers. |
| first_indexed | 2024-12-16T09:44:32Z |
| format | Article |
| id | doaj.art-7d6341a9b1604a85b2cac5c467d015b9 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-16T09:44:32Z |
| publishDate | 2019-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-7d6341a9b1604a85b2cac5c467d015b92022-12-21T22:36:12ZengSpringerOpenJournal of High Energy Physics1029-84792019-12-0120191214410.1007/JHEP12(2019)149Composite dynamics in the early UniverseStefania De Curtis0Luigi Delle Rose1Giuliano Panico2INFN — Sezione di Firenze, and Department of Physics and Astronomy, University of FlorenceINFN — Sezione di Firenze, and Department of Physics and Astronomy, University of FlorenceINFN — Sezione di Firenze, and Department of Physics and Astronomy, University of FlorenceAbstract We study the occurrence of a strong first-order electroweak phase transition in composite Higgs models. Minimal constructions realising this scenario are based on the coset SO(6)/SO(5) which delivers an extended Higgs sector with an additional scalar. In such models, a two-step phase transition can be obtained with the scalar singlet acquiring a vacuum expectation value at intermediate temperatures. A bonus of the Nambu-Goldstone boson nature of the scalar-sector dynamics is the presence of non-renormalisable Higgs in- teractions that can trigger additional sources of CP violation needed to realise baryogenesis at the electroweak scale. Another interesting aspect of this scenario is the generation of gravitational wave signatures that can be observed at future space-based interferometers.https://doi.org/10.1007/JHEP12(2019)149Beyond Standard ModelSpontaneous Symmetry BreakingTechnicolor and Composite ModelsThermal Field Theory |
| spellingShingle | Stefania De Curtis Luigi Delle Rose Giuliano Panico Composite dynamics in the early Universe Journal of High Energy Physics Beyond Standard Model Spontaneous Symmetry Breaking Technicolor and Composite Models Thermal Field Theory |
| title | Composite dynamics in the early Universe |
| title_full | Composite dynamics in the early Universe |
| title_fullStr | Composite dynamics in the early Universe |
| title_full_unstemmed | Composite dynamics in the early Universe |
| title_short | Composite dynamics in the early Universe |
| title_sort | composite dynamics in the early universe |
| topic | Beyond Standard Model Spontaneous Symmetry Breaking Technicolor and Composite Models Thermal Field Theory |
| url | https://doi.org/10.1007/JHEP12(2019)149 |
| work_keys_str_mv | AT stefaniadecurtis compositedynamicsintheearlyuniverse AT luigidellerose compositedynamicsintheearlyuniverse AT giulianopanico compositedynamicsintheearlyuniverse |